Questions Asked in December 2013

Most Popular Questions of December 2013

  1. Science--HELP!!

    1. In which of the following situations is a sound wave most likely to travel through air? A) An alarm clock rings in a vacuum. B) A giant star explodes. C) A grasshopper eats a leaf. D) An astronaut uses tools in space. 2. Which of the following factors

    asked by Jasmine on December 9, 2013
  2. help plz? 2 questions

    1. What does it mean to calculate frequencies within a dataset? to count the number of times a dataset is used by a student to calculate the product of two variables to make a third variable to count the number of cases that fall into different subgroups

    asked by Princess Anna on December 17, 2013
  3. please help me!! with this science!!!!!

    Multiple Choice: 1. If a kestrel eats a mouse that eats grass, the kestrel is a (1 point) producer. second-level consumer. first-level consumer. decomposer. 2. Which of the following best explains why a species of lizard is able to live in the desert but

    asked by josh on December 11, 2013
  4. science

    which of the following could be true of two different species that have a competitive relationship in the same ecosystem? A.one species preys on the other B.they relationship is mutually beneficial C.they share the same niche D.one species benefits, while

    asked by Aaron on December 13, 2013
  5. Science help (just 4 questions)

    1. Which of the following is an example of an environmental pressure? (1 point) the air pressure in the atmosphere a lake that is gradually running out of water a fight between two members of the same species breeding between two members of the same

    asked by Miley23 on December 4, 2013
  6. Math help :(

    1. 3w – 10w 13w –7w –7 7w 2. y + 2y +3z 2y + 3z 3y + 3z 2y2 + 3z 6yz 3. 6r + r – 5r 2r 1r + r 0r 7r – 5r 4. 5x + 2(x + 6) 7x + 6 7x2 + 12 7x + 12 7x (x + 6) 5. –3m + 3(m + 6) (1 point)6 –6m + 6 6m + 18 18

    asked by Princess Anna on December 18, 2013
  7. Reading Skills

    In American society, romantic love is considered the main reason for people to marry. On the other hand, in some societies, romantic love is considered a form of obsession or madness. In fact, even in many societies where "true love" is not considered a

    asked by Jeff on December 16, 2013
  8. Check my Science questions?

    1. Why is it rare for the soft parts of an organism to become a fossil? The soft parts take a long time to decay. The soft parts can be eaten by other animals. The soft parts cannot be buried in sediment. The soft parts form petrified fossils. 2. Which of

    asked by Princess Anna on December 11, 2013
  9. science(please check answers)

    1.which of the following were found to destroy ozone in the upper atmosphere? A. sulfur oxides B. cfcs(i pick this) C. nitrogen oxides D. carbon dioxide 2.which of the following sets of terms is associated with air pollution caused by burning fossil fuels?

    asked by matt on December 20, 2013
  10. Chemistry

    Which of the following will be more soluble in an acidic solution than in pure water? AgI, Ni(OH)2, KClO4, SrSO4, CaCO3

    asked by Mandy on December 5, 2013
  11. Science help.....

    Explain why Earth and other planets were not solid when they formed during the beginning of the Precambrian, approximately 4,600 million years ago (MYA). What was this particular time period called, and why is this time period not really considered a

    asked by Princess Anna on December 30, 2013
  12. Science

    suppose that a population of skunks lives on an isolated island is 500 skunks are present today and the birth rate is 65 per week and the death is 47 per week how many skunks to you predict will be on the island 105 days from now and what would a graph

    asked by K on December 22, 2013
  13. science

    which of the following would be most likely to lead to increase biodiversity? A.clear-cutting B.oil drilling C.national park planning D.farming

    asked by Sammy on December 11, 2013
  14. algebra

    2) A high school drama club is putting on their annual theater production. There is a maximum of 800 tickets for the show. The costs of the tickets are $6 before the day of the show and $9 on the day of the show. To meet the expenses of the show, the club

    asked by nyjah on December 26, 2013
  15. Physics

    Problem 2- A 350 kg roller coaster starts from rest at point A and slides down the frictionless loop-the-loop shown in the figure. a) How fast is the roller coaster moving at point B? b) How hard does it press against the track at point B?

    asked by Anonymous on December 12, 2013
  16. math

    Which of the following statements is always true of similar polygons

    asked by james on December 9, 2013
  17. Science

    Which of the following could be true of two different species that have a competitive relationship in the same ecosystem? · One species preys on the other. · The relationship is mutually beneficial. · They share the same niche. · One species benefits,

    asked by Steve on December 26, 2013
  18. Math help.

    1. Write the fraction five-sixths as a percent. Round to the nearest hundredth of a percent where necessary. 33.33% 66.67% 83.33% 1.20% 2. Write the decimal 0.041 as a percent. 41% 4.1% 410% 0.41% 3. Ashley used 2/5 of her savings account to buy a new

    asked by Princess Anna on December 16, 2013
  19. SS

    Why was the Strait of Malacca most important to international traders? a. the strait provided the most direct route between India and China. b. the strait provided the only route to Southeast Asia's spice-growing islands. c. the strait gave Southeast

    asked by Anonymous on December 30, 2013
  20. science

    2. Describe the two most important events in the history of animal life that occurred at the beginning and at the end of the Paleozoic era. List and briefly outline the six different periods into which the Paleozoic era is divided. so i cannot find it in

    asked by vanessa on December 19, 2013
  21. Science

    Which of the following could be true of two different species that have a competitive relationship in the same ecosystem? · One species preys on the other. · The relationship is mutually beneficial. · They share the same niche. · One species benefits,

    asked by Steve on December 26, 2013
  22. English

    9. Read these line, from The Passionate Shepherd to his love. "The country swains shall dance and sing/For they delight each May morning.?If these delights thy mind may move,/Then live with me, and be my love." What sort of life is the shepherd offering

    asked by Helen on December 17, 2013
  23. English

    Choose the term that describes the phase that is in quotes. Tony realized that "Maria was not going to show up". A.) noun clause B.) adverb clause C.) adjective clause D.) independent clause I think it is A for this one? Gripping the rail, "Lindsey stepped

    asked by Cassie on December 16, 2013
  24. science

    Define the geological time scale and explain why geologists use it to show Earths History.

    asked by victoria on December 18, 2013
  25. Math help ms sue.

    Multiple Choice 1. Write the ratio in the simplest form. 45:15 (1 point) 9:3 3:1 1:3 4:1 2. Solve the following proportion. r over five equals nine over twenty-one (1 point) r = 2.14 r = 9 r = 11.66 r = 37.8 3. Sarah’s mother has a miniature village

    asked by josh on December 16, 2013
  26. 2 questions:(

    3. What do you need to do before you can sort and filter data in a database? Format the table. Apply borders. Change the cell fill color. Change the font color. 4. Data cannot be sorted or filtered accurately if there are: even numbers only data fields

    asked by Princess Anna on December 11, 2013
  27. math

    what is the answer to the math pizzazz E-30? What is the title?

    asked by luke on December 9, 2013
  28. English

    "I looked upon the scene before me—upon the mere house, and the simple landscape features of the domain—upon the bleak walls—upon the vacant eyelike windows—upon a few rank sedges—and upon a few white trunks of decayed trees—with an utter

    asked by Anonymous on December 17, 2013
  29. math plz help

    write the fraction 5/6 as a percent.rounded to the nearest hundredth of a percent where necessary A.33.33% B.66.67% C.83.33 D.1.20%

    asked by Anonymous on December 9, 2013
  30. Help me with this science.

    Multiple Choice: 1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? (1 point) nitrogen-fixing bacteria denitrifying bacteria decomposers producers 2. Which step in the nitrogen cycle is

    asked by josh on December 10, 2013
  31. English

    Choose the term that describes the type of sentence shown. If you are in line early, you'll be sure to get the best tickets. A.) compound-complex B.) complex C.) compound D.) simple I think it is C? John was late to dinner and I was late to the movies. A.)

    asked by Cassie on December 16, 2013
  32. science

    Describe how the Triassic period was a transitional time period during the Mesozoic era. Explain why the boundary between the Triassic and Jurassic periods is similar to the boundary between the Permian and Triassic periods.

    asked by vanessa on December 19, 2013
  33. English

    select the correct form of the possessive for the bolded word(s). with MS.SMITH assistance, we learned to paddle a cone. *Ms Smith's Ms Smiths's Ms Smitheses' Ms Smiths After several HOURS worth of work, she finished the project. hour's *hours' hours's

    asked by Anonymous on December 17, 2013
  34. Science

    1. Why is California’s high-speed rail such a groundbreaking effort? 2. Why will it take so long to complete the high-speed rail route? 3.Should other states wait to see if the high-speed rail system works well before starting their own plans for similar

    asked by Princess Anna on December 23, 2013
  35. science

    What are differences between spiral and elliptical galaxies?

    asked by victoria on December 1, 2013
  36. Science

    1. Which of the following traits is acquired A. the number of petals that grow in a plant's flowers B. the wing shape of a wild bird C. the ability of some gorillas to use sign language D. a cheetah's ability to run faster than any other animal 2. The

    asked by homework help on December 13, 2013
  37. SCIENCE

    which of the following would most likely lead to increased biodiversity

    asked by Anonymous on December 3, 2013
  38. physics

    The coefficient of kinetic friction for a 22 kg bobsled on a track is 0.20. What force is required to push it down a 6.0° incline and achieve a speed of 64 km/h at the end of 75 m?

    asked by gen on December 1, 2013
  39. English 10

    Which of the following is a possible setting for works of American literary realism? CHECK ALL THAT APPLY! *a. American West *b. Post-Civil War South c. New England d. Gold Coast I think there is one more that needs to be check, but I don't know which one

    asked by Cassie on December 10, 2013
  40. Math

    1. Rosa, Roberto, Andrea, and Inno find an estimate for square root 10. Who has proposed the best solution? (1 point) Rosa: "Use square root 9 and square root 25 to estimate." Roberto: "I will use square root 4 and square root 9." Andrea: "It should be

    asked by anonymous on December 1, 2013
  41. science

    which of the following is a consequence of using fossil fuels as an energy source

    asked by Anonymous on December 6, 2013
  42. Differential Calculus

    At 9am ship B is 65 miles due east of another ship A. Ship B is then sailing due west at 10mi/h and A is sailing due south at 15 mi/hr if they continue in their respective course when will they be nearest to one another? and how near?

    asked by Darcy ( Please Reply, thank you) on December 9, 2013
  43. Business Math

    Juan Ramirez sells suits in a major department store on weekends. He earns a commission of 5 percent on the first ten suits, and if he sells more than ten, he earns an additional 3 percent on the additional suits. Last weekend Juan sold thirteen $250.00

    asked by Cassie on December 5, 2013
  44. Math help?

    1. What are the equivalent fraction and decimal for 25%? 2. What is the equivalent decimal for 20%? 0.2 20 2.2 2 3. Estimate 78% of 20. 14 16 19 2 4. You go out to eat with your family, and you agree to leave the tip. What is a 15% tip on a $60.00 bill?

    asked by Princess Anna on December 4, 2013
  45. Urgent Science~!

    Carla applied a force of 35 N to a wheelbarrow full of bricks and moved it 2.5 m. Which of the following can be determined from this information? The wheelbarrow supplied 87.5 J of work. The wheelbarrow has a mechanical advantage of 14.*** The wheelbarrow

    asked by Gabby on December 10, 2013
  46. Science

    Two species have a relationship with one another in an ecosystem. Suppose one of these two species goes extinct. Which type of relationship did the two have if the surviving species population increases after the other goes extinct? · The extinct species

    asked by Steve on December 27, 2013
  47. Science

    A nonnative species of animal is introduced into a healthy ecosystem. In its new environment, this species has no predators, although it preys on several native animals in the ecosystem. Make a prediction about the biodiversity and health of this ecosystem

    asked by Steve on December 26, 2013
  48. Algebra 2

    some investments in the stock market have earned 10% annually. At this rate, earning can be found using the formula A=p(1.10)n, where A is the total value of the investment, P is the initial value of the investment, and n is the number of years the money

    asked by Cassie on December 10, 2013
  49. algebra

    During a manufacturing process, a metal part in a machine is exposed to varying temperature conditions. The manufacturer of the machine recommends that the temperature of the machine part remain below 141°F. The temperature T in degrees Fahrenheit x

    asked by Helen on December 18, 2013
  50. math

    "It takes Juwan exactly 35 minutes by car to get to his grandmother's. The nearest parking area is 4 minute walk from her apartment. One week he visited more often. He realized that he spent 5 hours and 12 minutes traveling to her apartment and then back

    asked by Gab on December 5, 2013
  51. Math!

    Please Please Please help me! I'm really behind and need to get this done and i'm really confused. 1. 5h – 9 = –16 + 6h (1 point) 4 –7 7 10 2. 4x + 4 = 9x – 36 (1 point) –8 –7 8 –3 3. Which of the following equations has an infinite number of

    asked by Marie on December 16, 2013
  52. Help?

    1. What does it mean to calculate frequencies within a dataset? to count the number of times a dataset is used by a student to calculate the product of two variables to make a third variable to count the number of cases that fall into different subgroups

    asked by Princess Anna on December 18, 2013
  53. Ratios Math (Please Help)

    Please Help, And can you explain how you got the answer? 1. Write the ratio 15:25 as a fraction in simplest form. A) 3/5 B) 15/25 C) 30/50 D) 1/3 2.Which ratio is equivalent to 3/7? A) 6/10 B) 9/21 C) 12/35 D) 7/3

    asked by Mileena on December 5, 2013
  54. Statistic

    A statistic instructor randomly selected four bags of oranges, each bag labeled 10 pounds, and weighed the bags.They weighed 10.4, 10.9 , 10.8, and 9.9 pounds.assume that the distribution of the weights is normal. Find a 95% confidence interval for the

    asked by Jaz on December 6, 2013
  55. Statistics

    If the alpha level is changed from a=.05 to a=.01. a. What happens to the boundaries for the critical region? b. What happens to the probability of a Type I error?

    asked by Lyn on December 20, 2013
  56. English

    Which of the following topics is the clearest example of the "informative purpose"? A.) a newspaper article describing the outcomes of an election B.) a lengthy monologue by the lead character in a play C.) an advertisement for an amazing new product D.) a

    asked by Cassie on December 16, 2013
  57. Science

    A biologist made population counts of four different species of animals in an ecosystem. What can you infer from these numbers about possible predator-prey relationships between the species? Species A 155 Species B 17 Species C 2,467 Species D 19 ·

    asked by Steve on December 27, 2013
  58. physics

    Calculate the net work output of a heat engine following path ABCDA in Figure 14.30, where V1 = 5.0 10-3 m3 and V2 = 20.0 10-3 m3.

    asked by sam on December 6, 2013
  59. physics

    An AC voltage of the form Δv = (100 V) sin(1000t) is applied to a series RLC circuit. Assume the resistance is 400 , the capacitance is 4.60 µF, and the inductance is 0.500 H. Find the average power delivered to the circuit. W

    asked by chan on December 2, 2013
  60. Geometry

    1. If ΔRST symbol ΔNPQ, then RT line is congruent to _____. (1 point) line NP line NQ line PQ line QP 2. Given RST NPQ, RT = 7x – 5, NQ = 5x + 11, find the length of RT and of NQ. (1 point) 8 51 40 56 3. Which of the following statements is true about

    asked by hi on December 5, 2013
  61. English

    "When you're finished", please lock the door. Choose the term that describes the phrase in quotation marks. A.) adverb phrase B.) adjective phrase C.) infinitive phrase D.) appositive phrase I have no clue for this one.

    asked by Cassie on December 16, 2013
  62. algebra

    a survey at your school found that 792 in 1,220 students have a cell phone. what percent of the students in have a cell phone? round to the nearest hundredth where necessary 6.49% 54.04% 64.92% (i think that's the answer) 79.20%

    asked by ashley on December 15, 2013
  63. science

    after six half-lives what percentage of a radioactive sample will remain? a) 0%-1% b) 1%-3% c) 3%-6% d) 6%-10%

    asked by victoria on December 9, 2013
  64. English 11A

    each sentence contains an apposive phrase. Determine whether the appositive phrase is essential or non-essential. Mark the sentence that punctuates the appositive phrase correctly. 36. A. Ten feet of snow more than we had ever seen fell recently. *B. Ten

    asked by Cassie on December 17, 2013
  65. Chemistry

    Two competing corporations are submitting data to the US Military to create chemical hot packs. The Military has stipulated that each hot pack may cost no more than 85 cents and must result in at least a 20degrees Celsius rise in temperature when

    asked by Kelly on December 3, 2013
  66. Science

    A biologist studying a desert ecosystem observes that the population of a lizard species increases following a particularly hot, dry period that causes a snake population to decline. What could the biologist hypothesize about the roles of these two

    asked by Steve on December 26, 2013
  67. Science HELP!!!!

    Which waves have the longest wavelength and the lowest energy on the electromagnetic spectrum? 1. X-rays 2. infrared 3. radio waves 4. gamma rays

    asked by Jasmine on December 10, 2013
  68. Economic

    Why might a profitable motel shut down in the long run if the land on which it is located becomes extremely valuable due to surrounding economic development? What kinds of costs are involved in making a decision to shut down?

    asked by wayne on December 10, 2013
  69. Spanish

    I need major help in translating these numbers into Spanish correctly. Thanks 570 quinientos setenta 46.500 cuatro seistente 726 setecientos y veintiseis 489 cuatrocientos ochenta y nueve 1.950.020 uno millones noventa y ciento mil

    asked by Tina on December 3, 2013
  70. History!

    Can someone please help me? Thanks! I'm really behind and i need to get caught up and i just really need some help! Thanks!! :) 1. As a result of the French and Indian War, _____ claimed all land west of the Mississippi River, and _____ gained control of

    asked by Mandy on December 18, 2013
  71. Social studies

    12.   Which of these responsibilities is the job of national government, but not state or local government A. collecting taxes B. repairing roads and highways C. maintaining a military D. running public schools 14. Formal membership in a nation- state is

    asked by homework help on December 12, 2013
  72. Ap Physics 1

    The 1800 kg tractor exerts a force of 1.75 104 N backward on the pavement, and the system experiences forces resisting motion that total 2400 N. If the acceleration is 0.210 m/s2, what is the mass of the airplane? (b) Calculate the force exerted by the

    asked by Physics Help! on December 10, 2013
  73. help please English

    If this be error and upon me proved/ I nevered writ, nor no man ever loved." What is the impact of these concluding lines from shakespeare's sonnet 116? 1. They underscore the fact that everyone makes mistakes 2. They underscore the fat that shakespeare is

    asked by Helen on December 22, 2013
  74. English

    These are my last 2 questions. Identify the incorrectly punctuated sentence. A.) Waiting, in the ticket line, Jerry hoped there would be enough seats left in the theater. B.) When it was finally his turn, he purchased the last three tickets available. C.)

    asked by Cassie on December 16, 2013
  75. Calculus (check my work)

    The measurement of the circumference of a circle is found to be 64 centimeters, with a possible error of 0.9 centimeter. Approximate the percent error in computing the area of the circle. MY ANSWER 8.83%

    asked by Lindsay on December 17, 2013
  76. Math

    Four friends went to see a movie. Each ticket cost $x. The table shows the prices of several items at the theater. They bought four large pretzels and four bottles of water. Write and simplify an expression that represents the total cost of tickets and

    asked by Anonymous on December 8, 2013
  77. math

    A science teacher has a supply of 50% sugar solution and a supply of 80% sugar solution. How much of each solution should the teacher mix together to get 105 ML of 60% sugar solution for an experiment 70 ML of the 50% solution and 35 ML of the 80% solution

    asked by chandler on December 24, 2013
  78. English

    1. A period in literature governed by a particular set of ideas , concerns or characteristics is A. literature of exploration B. national literature C. a literary outline D. a literary movement 2, which literary movement ended around the time of the civil

    asked by Cassie on December 16, 2013
  79. Algebra

    During a softball game, a batter hits a ball upward from an initial height of 3 feet. The height, in feet, of the softball is given by s(t)=−16t^2+70t+3 , where t is time in seconds and . Which is closest to the time when the softball will be 50 feet

    asked by Samantha on December 5, 2013
  80. Calculus

    The total stopping distance T of a vehicle is T=2.5x+0.5x^2 where T is in feet and x is the speed in miles per hour. Approximate the change and percent change in total stopping distance as sped changes from x=25 to x=26 miles per hour. I started taking the

    asked by Lindsay on December 17, 2013
  81. help please English

    If this be error and upon me proved/ I nevered writ, nor no man ever loved." What is the impact of these concluding lines from shakespeare's sonnet 116? 1. They underscore the fact that everyone makes mistakes 2. They underscore the fat that shakespeare is

    asked by Helen on December 21, 2013
  82. science

    Before beginning any land development project, people should carry out a(n) ___________________ analysis to consider all of the potential impacts of the project on the local ecosystems

    asked by Kobe on December 16, 2013
  83. Science help, Ms.Sue

    1. After a rock layer is eroded, which additional event must occur to create an unconformity, or a gap in the geologic record? an earthquake or motion along a fault new deposits of sediment must build up on the eroded area folding of sedimentary rock

    asked by Princess Anna on December 14, 2013
  84. socialstudies(check answers please)

    please check my answers and thank you 1. what resource first drew european traders to canada ? A. timber B. fish C. animal furs (i pick this) D. whales 2. Evaluate which of the following most allowed religious freedom and french laws in canadas history ?

    asked by matt on December 18, 2013
  85. Social Studies

    1. Diversity most closely means (1 point) sharing cultural traits and practices with others. making up a whole of many different parts. being a member of a small ethnic group. having many similar regions next to one another. 2. How does life in Istanbul

    asked by Christina on December 10, 2013
  86. science

    which of the following explains why your body may contain a carbon atom that was present in George Washington's body in 1776

    asked by dar on December 5, 2013
  87. math

    quadrilateral RSTU has vertices R(-6,-3), S(3,3), and T(4,-1). what are the coordinates of vertex U if RSTU is a parallelogram?

    asked by amber on December 25, 2013
  88. science

    if you were looking for an example of a trace fossil, for which of the following might you search? a) footprints and trails b) a whole body preserved in rock c) dinosaur teeth d) a hardened mineral smaple

    asked by victoria on December 13, 2013
  89. physics

    The height of the Washington Monument is measured to be 170 m on a day when its temperature is 35.0°C. What will the change in its height be on a day when its temperature falls to -12.0°C? Although the monument is made of limestone, take the thermal

    asked by angela on December 6, 2013
  90. maths

    the boys of a school can be arranged in 12, 15, 18 equal rows and also into a solid square. what is the least number of boys that the school can have? (hint: find the lcm) anwer is 900 explain

    asked by tanzil on December 1, 2013
  91. science

    In an island ecosystem, fox and skunks both hunt mice and toads. Which of the following correctly describes some of these relationships? A.Skunks and mice have a competitive relationship B.Skunks and toads have a predator-prey relationship C.Fox and skunks

    asked by Anonymous on December 13, 2013
  92. Chem

    A 0.170-mole quantity of NiCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Ni2 ions at equilibrium? Assume the formation constant* of Ni(NH3)62 is 5.5 × 108.

    asked by Mandy on December 5, 2013
  93. Calculus

    I'm a little confused with this integration problem: If the definite integral from 0 to 2 of (e^(x^2)) is first approximated by using two inscribed rectangles of equal width and then approximated by using the trapezoidal rule with n=2, the difference

    asked by Rasheda on December 5, 2013
  94. 1 question!

    Answer the following question about the poem “Fable for When There’s No Way Out.” How does this line from the poem help explain the outcome of the chick’s struggle? “Rage works if reason won’t.” Okay, I have read this poem, but I do know how

    asked by Princess Anna on December 10, 2013
  95. Science- Ms. Sue

    What evidence was found from soft tissue samples of a remarkable well-preserved Tyrannosaurus Rex that provided molecular evidence linking T.Rex to a chicken? A. Antibodies that react in a specific way with chicken proteins reacted in the same way with T.

    asked by Anonymous on December 6, 2013
  96. math

    Jeff uses 3 fifth size strips to model 3/5. He wants to use tenth size strips to model equivalent fraction. How many tenth size strips will he need? my answer is 6/10

    asked by ezekiel on December 4, 2013
  97. Science Work

    1. Which of the following traits is acquired A. the number of petals that grow in a plant's flowers B. the wing shape of a wild bird C. the ability of some gorillas to use sign language D. a cheetah's ability to run faster than any other animal 2. The

    asked by Help me please on December 16, 2013
  98. science

    in an island ecosystem a beetle feeds on a shrubby plants -- a songbird preys on the beetle and the hawk preys on the songbird. which has the smallest population?

    asked by steve on December 4, 2013
  99. science

    How is biodiversity related to human activities that use natural resources? A.biodiversity decreases as humans use natural resources wisely B.biodiversity decreases as humans limit there use of natural resources C.biodiversity increases as humans deplete

    asked by john on December 9, 2013
  100. science

    radioactive decay occurs when atoms a) lose mass b) join with atoms of another element c) break down to form atoms of another element d) are exposes to chemical weather

    asked by victoria on December 13, 2013