Sunday
December 4, 2016

Homework Help: Science: Earth

Recent Homework Questions About Earth

physics
Determine the force per meter on a lightning bolt at the equator that carries 20 000 A and is perpendicular to the Earth’s magnetic field, 3x10-5 T. What is the direction of the force if the current is straight up and the Earth’s field direction is due north which is...
Sunday, December 4, 2016 by ainul

8th Grade Science
Which of the following best describes what causes the phases of the moon? A. The alignment of the sun, Earth and moon (I think it's this one) B. The speed of the moon around the Earth C. The speed of the Earth around the sun D. The alignment of the planets
Saturday, December 3, 2016 by Music Lover 14

Social Studies
1. Some Polynesian islands are ring-shaped coral islands that surround a body of water, or copra. coral.>>> atolls. plates. 2. In the mid-1800s, what event played a part in the large increase in British immigration to Australia? Aborigines moved to the outback. ...
Saturday, December 3, 2016 by Lip

physics
Determine the force per meter on a lightning bolt at the equator that carries 20 000 A and is perpendicular to the Earth’s magnetic field, 3x10-5 T. What is the direction of the force if the current is straight up and the Earth’s field direction is due north which is...
Saturday, December 3, 2016 by aishah

Physics
a stationary 25 kg object is located on a table near the surface of the earth. The coefficient of static friction between the surface is 0.50 and of kinetic friction is 0.30.
Friday, December 2, 2016 by Josh

Physics
The crew men in space are discussing whether they can crack a wall nut with a hammer. Man A says that hitting wall nut with a hammer would be no more effective than hitting it with a feather. Because the hammer is weightless in space. Man B says that he found mass of the ...
Friday, December 2, 2016 by Raj

science double check answers
1. What is the alignment of the Earth, moon, and sun during a lunar eclipse? A)Earth, sun, moon B)Earth, moon, sun C)Sun, Earth, moon** D)Sun, moon, Earth I know that for a lunar eclipse the earth is in the middle, so i just wanted to double check 2.A scientific law A)can have...
Thursday, December 1, 2016 by katrina

science
1. What is the alignment of the Earth, moon, and sun during a lunar eclipse? A)Earth, sun, moon B)Earth, moon, sun C)Sun, Earth, moon** D)Sun, moon, Earth I know that for a lunar eclipse the earth is in the middle, so i just wanted to double check 2.A scientific law A)can have...
Thursday, December 1, 2016 by katrina

Physics
Find the orbital speed of a satellite in a circular orbit 3.70×107 m above the surface of the Earth. v = 3030 m/s So I've been trying to solve this problem for some time now and haven't figured it out. What I did is find orbital radius, use that to find the ...
Thursday, December 1, 2016 by Alvin

science
1.A scientific law A)can have only one known exception B)can have any number of exceptions as long as we know about them ** C)might have many exceptions we don’t know about D)has no exceptions 2.Sunspots are A) solar storms that can interfere with communication satellites...
Thursday, December 1, 2016 by katrina

science
1.A scientific law A)can have only one known exception B)can have any number of exceptions as long as we know about them C)might have many exceptions we don’t know about D)has no exceptions*** 2.Sunspots are A) solar storms that can interfere with communication satellites...
Wednesday, November 30, 2016 by katrina

science
I'm stuck on the following questions 1)The geocentric model of the universe states that the Earth is the center of the universe. This is an example of a A)scientific conclusion B)pseudoscience C)scientific law*** D)Scientific method Through process of elimination i know ...
Wednesday, November 30, 2016 by katrina

English
If you had read The Last Judgement could you please help me? God...."The fifth and sixth people were an old married couple;he finished them off with an axe and found practically no money, although they had more than twent thousand hidden away." Kugler jumped up: ...
Wednesday, November 30, 2016 by Anonymous

physics
Suppose a river flows due south with a speed of 2.0 m/s. Given that speed of motorboat relative to water is 4.2 m/s due east. (a) In what direction should the motorboat head to reach a point on the opposite bank directly east from your starting point? (b) What is the velocity ...
Wednesday, November 30, 2016 by Sue

Physics
Any help is appreciated! A grandfather clock is based on the period of oscillation of a pendulum. The clock keeps perfect time on the first floor of the Sears tower but when carefully moved to the top floor h=436 m above the surface of the earth, the clock is found to be slow...
Wednesday, November 30, 2016 by Jamie

Science
A new geosynchronous satellite needs an orbit of 35.7 km . The mass of the Earth is 5.97x 10^24 Kg and the radius of Earth 6.4 x 10^3 km. The mass of the satellite is 200 Kg. What velocity will it need to achieve that orbit
Tuesday, November 29, 2016 by Boberto

Physics
An airplane is flying above the Earth's surface at a height of 10.9 km. The centripetal acceleration of the plane is 16.7 m/s2. What is the angular velocity of the plane moving in uniform circular motion? Take the radius of the earth to be 6400 km.
Tuesday, November 29, 2016 by Uoit student

physics
An airplane is flying above the Earth's surface at a height of 10.9 km. The centripetal acceleration of the plane is 16.7 m/s2. What is the angular velocity of the plane moving in uniform circular motion? Take the radius of the earth to be 6400 km. Please help, I've ...
Tuesday, November 29, 2016 by Uoit student

Science
A new geosynchronous satellite needs an orbit of 35.7 km . The mass of the Earth is 5.97x 10^24 Kg and the radius of Earth 6.4 x 10^3 km. The mass of the satellite is 200 Kg. What velocity will it need to achieve that orbit?
Tuesday, November 29, 2016 by Boberto

Science
The Sun exerts a gravitational force of 3.56 x 10^22 N on Earth. The mass of the Sun is 2.0 x 10^30 kg. The mass of the Earth is 6.0 x 10^24 kg. If we assume the Earth has a circular orbit of 1.5 x 10^11 m, what is the velocity needed for Earth to remain in orbit?
Tuesday, November 29, 2016 by Boberto

Social Impact of Technology
Which of these kinds of energy is a fundamental requisite for life on Earth? A. Electrical energy B. Solar energy C. Chemical energy D. Potential energy An -- C
Monday, November 28, 2016 by Angela

Physics
How much faster would a person be moving if they stood on top of a 18.2 m high building compared to the ground? Take the period to be one day, and the radius of the earth to be 6400 km?
Monday, November 28, 2016 by Impossible

Physics
A 0.1134kg spherical meteor of diameter 3 cm enters the earth’s atmosphere at an elevation of 121920m with a velocity of 13411.2 m/s. The meteor’s temperature is -73.15?C. The specific heat at constant volume (Cv) of the meteor is 800 J/kg?C. (a) If the meteor has a ...
Monday, November 28, 2016 by Jack

Science , Biology
Cretaceous extinction... The evidence tells you that “overwhelming evidence suggests that the extinction was caused by a 10-km-diameter asteroid that struck Earth.” Suggest at least three lines of evidence that might have led scientists to this conclusion. Could you ...
Sunday, November 27, 2016 by Woo

physics
An airplane is flying above the Earth's surface at a height of 9.30 km. The centripetal acceleration of the plane is 18.2 m/s2. What is the angular velocity of the plane moving in uniform circular motion? Take the radius of the earth to be 6400 km.
Saturday, November 26, 2016 by Please help

Physics
A satellite orbits the Earth in an orbits 750 km high. Find (*) the satellite's orbital speed and (**) period. (The mass and radius of the Earth are 5.98E + 24 kg and 6370000 m, respectively.)
Saturday, November 26, 2016 by Mary

Earth Science
PLEASE HELP! URGENT! 7. Which letter arrows point to hanging valleys? 8. Which letter arrows point to aretes? 9. Name a peak on the map that is a horn. 10. Feature E on the map is composed of glacial till. What type of glacial feature is E, and how did it form?
Friday, November 25, 2016 by Jade

physics
How many minutes would it take a radio wave to travel from the planet Venus to earth?
Tuesday, November 22, 2016 by Musiyab Awan

science
Which of the following will make it harder in the future to develop sustainable methods for humans using resources? 1) there will be fewer renewable resources 2) more humans will populate the earth 3) more humans will recycle mterials
Tuesday, November 22, 2016 by Jaden

physics
suppose the experiment was conducted on the surface of the moon of about 1-6th that of the earth. If a single period takes exactly 1.00 second, how long does a period take on the moon ?
Monday, November 21, 2016 by Briana

Science
1.Which of the following gases was most likely present in Earth's earliest atmosphere? A. nitrogen B. hydrogen* C. argon D. oxygen 2. Which of the following statements accurately describes the development of the geologic time scale? A. Scientists developed the geologic ...
Monday, November 21, 2016 by help me plss

Science plsss help!
1.Which of the following gases was most likely present in Earth's earliest atmosphere? A. nitrogen B. hydrogen* C. argon D. oxygen 2. Which of the following statements accurately describes the development of the geologic time scale? A. Scientists developed the geologic ...
Monday, November 21, 2016 by PLease help me 6 science!!

computer science
A GPS satellite develops a fault whereby it moves into an orbit 19 500 km above the Earth’s surface and also emits a weak signal whose power is only 24 W. What will be the power per square metre of the signal received on the Earth’s surface? Choose the nearest value ...
Monday, November 21, 2016 by yomi

physics
What is the period (in seconds) of a simple pendulum 62.0 cm. long, on the earth?
Sunday, November 20, 2016 by kassy

ELA
"The Enlightenment and the Scientific Revolution were twin explosions in thinking that made the 17th and 18th centuries one of the most exciting and dynamic eras in European history. People cam to believe the power of human reason apart from the guidance of religion. ...
Friday, November 18, 2016 by Miranda

Physics
Calculate the kinetic energy that the earth has because of (a) its rotation about its own axis and (b) its motion around the sun. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total energy used in the United States ...
Friday, November 18, 2016 by BrookeNeed

Physics
An object is projected from a satellite orbiting 200 km above the surface of the earth. The object has a speed relative to the Earth of 2.85×104 m/s. What is its speed when it is very far from the earth?
Thursday, November 17, 2016 by James

Chemistry
How many moles of ozone does the atmosphere hold? For a sense of scale,compare the amount to the total carbon dioxide emitted annually from fossil fuel burning, cement production and deforestation (7900 Tg/C). Given with the facts the amount of ozone is equivalent to a 3mm ...
Thursday, November 17, 2016 by Nayo

Science
What parts of the earth did glaciers cover during the ice age.
Wednesday, November 16, 2016 by Anonymous

science
5. Suppose a skydiver (mass = 75 kg) is falling toward the Earth. When the skydiver is 100 m above the Earth he is moving at 60 m/s. At this point calculate the skydiver’s…….
Wednesday, November 16, 2016 by jeremiah

ENGLISH HELP PLS
Identify the choice that best describes the sentence. 5. More than 1,000 years passed before Copernicus proposed that the earth orbited the sun. (1 point) a. simple*** b. compound c. complex d. compound-complex *** = my answer
Monday, November 14, 2016 by Chloe

physics
The mass of the Earth is 5.972kg, and the radius of Earth is 6, 371 km. A 750 kg satellite orbits 35, 800 km above Earth in a perfectly circular orbit. 1. If the gravitational force is the centripetal force keeping the satellite in a stable cicular orbit, how does the ...
Monday, November 14, 2016 by LESTER

English
Write an analysis paragraph that answers the overarching question: What is the effect of imagery on the reader’s understanding of the relationship between Orwell and the native Burmese people? I look up examples and step by step and still dont understand. Pls help me This...
Sunday, November 13, 2016 by Emma

Science-please help
What makes the moon rise? a)Alignment of the stars 2) Earth's rotation 3) Moon orbits about the Earth Is the answer (2)?
Sunday, November 13, 2016 by Chimingbell

English
1. I heard the weather is usually windy and foggy on Dokdo. 2. I heard that he is very kind. 2-2. I heard that he was very kind. (What is the difference between them in meaning? Are both okay? Which one is commonly used?) 3. I heard that two times five is ten. 4. I heard that ...
Friday, November 11, 2016 by rfvv

Physics
The orbital period of the moon about the earth is approximately 27.3 days. given that the average earth-moon distance is 384,000 kilometers, predict the moon's speed using the expression for centripetal force and the gravitational force, setting them equal to each other.
Thursday, November 10, 2016 by max

la
la - Connexus CHEAT! - Ms. Sue, Wednesday, November 9, 2016 at 1:59pm You just grievously insulted me! Why on earth do you think I would give you the answers?? Teachers, note: This "student" posted from South Bend. guys how and why would she look where i live i need ...
Thursday, November 10, 2016 by My real name karimya brown

Natural science
Why are the coldest temperatures at the lowest 50 km height from the surface of the Earth, occur generally at tropical tropopause?
Wednesday, November 9, 2016 by steve

World History
If someone could check these that'd be great ;o; <3 1. Which need did the first universities in medieval Europe seek to meet? A. Education of the Masses B. Instruction of knights in the chivalric code C. Preparation of monarchs to rule *D. Training for members of the ...
Wednesday, November 9, 2016 by Lys

Physics
what is the angular speed of the earth as it orbits the sun a) in radians/second? b) in degrees per day? I need help please. Use the equation and step by step to get the answer
Tuesday, November 8, 2016 by Anonymous

Earth Science
Assume that the lower troposphere is isothermal with a temperature TA. An airparcel at the surfaceis heated isobarically to a temperature of T0 and then released and allowed to ascend dryadiabatically. Assume that the buoyancy is the only force acting on the parcel and that ...
Tuesday, November 8, 2016 by Angela

Physics
What is the angular speed of the earth as it orbits the sun a) in radians/second? b) in degrees per day?
Monday, November 7, 2016 by Anonymous

Physics
What is the reaction of the earth pulling down on a pen that is lying on a table
Monday, November 7, 2016 by Mark

English
roxie 1. Choose the answer that best matches the word in italics. Use context clues to determine the meaning of the word, if necessary. The decorations were reminiscent of autumn leaves. (1 point) leftovers made reminders symbolic 2. Choose the answer that best matches the ...
Monday, November 7, 2016 by PLEASE HELP

Physics
Suppose that instead of our sun, our star were a giant star such as Betelgeuse. The mass of Betelgeuse is estimated to be about 20 times that of our sun. With earth in the same orbit? With its same mass, how long would our year be in earth days if we orbited Betelgeuse?
Monday, November 7, 2016 by Matt

Physics
A) the earth year is 365.25 days long. How long would our year be if earth followed the same orbit, but was only the mass of Mars? Answer this in earth days. B) How long would our year be if earth were the same mass, but had the orbital distance of mercury Answer this in earth...
Monday, November 7, 2016 by Matt

Physics
At a height of 500km above earth, a satellite will orbit the earth once every 95 minutes. Find the mass of the earth based on this idea. B) How far above earth's surface would a satellite need to orbit so that it revolves at exactly the same rate as the earth's rotation?
Monday, November 7, 2016 by Matt

Earth Science
1. The water cycle is the _____. A. distribution of drinking water on Earth ?**? B. unending circulation of Earth's water supply ?**? C. the recycling of water after industrial use ?**? D. the evaporation of water from Earth's surface ?**? 2. Plants release water into ...
Sunday, November 6, 2016 by PleaseHelpMe777

Physics
Calculate the force of earths Gravity on a 2.00 earth radii above the earth surface if it's mass is 1850kg.
Sunday, November 6, 2016 by Stuck

physics
A bomber drops a bomb from an aircraft flying at 2000Km/h with an altitude of 7 Km. The speed at which the bomb will strike the earth would be. a) Greater than 2000Km/h b) Less than 2000 Km/h c) Equal to 2000 Km/h d) Can not compare with the given data
Sunday, November 6, 2016 by Ghulam muhammad

AP physics
The earth moves faster in its orbits around the sun in January, or in July? Explain [Note: this is not much of a factor in producing seasons - the main factor is the tilt of the earths axis relative to the plane of its orbit.]
Sunday, November 6, 2016 by Stuck

AP physics
The sun is below us at a magnitude of nearly a line with the earth center. Are we then Heavier at midnight due to the sun's gravitational force on us, than we are at noon? Explain
Sunday, November 6, 2016 by Stuck

Physics
Why is more fuel required for spacecraft to travel from the earth to the moon than to return from the moon to the earth?
Sunday, November 6, 2016 by Stuck

Physics
Does an apple exert a gravitational force on the earth? If so, how large a force? Consider an apple (a) Attached to a tree and (b) falling.
Sunday, November 6, 2016 by Stuck

Earth Science
1.) What is the relationship between temperature and the rate at which antacid tablets react with water? 2.) Form a hypothesis about the relationship between temperature and the rate of chemical weathering. 3.) Would a limestone building weather more rapidly in Homer, Alaska, ...
Saturday, November 5, 2016 by PleaseHelpMe777

phisics
The earth is , on average 150 million km from the sun calculate its average speed in orbit?
Saturday, November 5, 2016 by wahid

Calculus - Falling Body Problem
Near the surface of the earth, the acceleration of a falling body due to gravity is 32 feet per second per second, provided that air resistance is neglected. If an object is thrown upward from and initial height of 3000 feet with a velocity of 75 feet per second, find its ...
Friday, November 4, 2016 by Jamie

Physics
At the surface of a certain planet, the gravitational acceleration g has a magnitude of 12.0 m/s^2. A 21.0-kg brass bell is transported to this planet. What is (a) the mass of the brass ball on the Earth and on the planet, and (b) the weight of the brass ball on the Earth and ...
Friday, November 4, 2016 by Luce

Physics
At what altitude above the Earth's surface is the gravitational field strength equal to g/7? .981 = -(1.0003322(6,371/6,371+h))^2)
Wednesday, November 2, 2016 by Denise

Science 7
1. A student studying a circuit diagram of a lightbulb, battery, and a switch correctly identifies it as a closer circuit. In this diagram, The lightbulb would be a. an insulator b. on*** c. disconnected d. off 2. The focus of gravity on an object on the surface of Mars is ...
Tuesday, November 1, 2016 by cat

english
1.  Choose the answe​r that best matches ​the word in italics. ​;Use context clues to&nbs​p;determine the meaning of the word, ​;if necessary. ...
Tuesday, November 1, 2016 by Aalyah

Science
Imagine Two Artificial Satellites Orbiting Earth At The Same Distance. One Satellite Has A Greater Mass Than The Other One? Which Of The Following Would Be True About Their Motion? A.The satellite with the greater mass is being pulled toward Earth w/ less of a force than the ...
Monday, October 31, 2016 by cat

Science
Imagine Two Artificial Satellites Orbiting Earth At The Same Distance. One Satellite Has A Greater Mass Than The Other One? Which Of The Following Would Be True About Their Motion? A.The satellite with the greater mass is being pulled toward Earth w/ less of a force than the ...
Monday, October 31, 2016 by carolina del la cruz

English
In the story “If I Forget Thee, Oh Earth…” why did Marvin’s father take him to see the view of earth from The Colony? A. The Colony had just discovered earth as a new planet in their galaxy, and he wanted to share the exciting news. B. He wanted Marvin to ...
Monday, October 31, 2016 by need help now

HELP WITH SCIENCE FAST
1.  Most likely, ___​_ were formed when l​ava from the moon's&n​bsp;interior flooded bowl­​like regions on the moon's surface​. (1 point) maria* ...
Monday, October 31, 2016 by help

Physics
Which are in static equilibrium? 1. A box sliding down a ramp. 2. A baseball after being hit. 3. A box sliding along a horizontal surface. 4. A perfectly upright freely spinning top 5. A freely swinging simple pendulum 6. A spinning astronaut floating out in deep space. 7. A ...
Sunday, October 30, 2016 by Jerry

Chemistry
A good vacuum pump on Earth can produce a vacuum with a pressure as low as 1.96 × 10-8 torr. How many molecules are present in each milliliter at a temperature of 23.0ºC?
Friday, October 28, 2016 by Hunter

Social Studies
Which of the following is a characteristic of Earth's first people? A. They lived in cold places B. They lives far from water sources C. They lived on the Asian continent D. They moved around in search of food** How do people in northern Chad adapt to the lack of arable ...
Friday, October 28, 2016 by Anonymous

Physics
You're tour director for a lunar trip, and want to award your passengers with certificates commemorating their crossing the point where the Moon's gravity becomes stronger than Earth's.How far from Earth should you award the certificate? Express your answer in ...
Thursday, October 27, 2016 by Emma

Earth Science
20. Contrast point source pollution and nonpoint source pollution. Can someone help me please?!?!?! Asap please?!?!?!?!
Thursday, October 27, 2016 by Just a confused person...

Science
What distance was used to define the astronomical unit (AU) A. the average distance across the sun, its diameter B. the average distance from the sun to mercury, the closest planet C. the average distance from the sun to earth, our home planet D. the average distance from the ...
Wednesday, October 26, 2016 by Brook

Ap physics
Determine the mass of the earth from the known period and the distance of the moon
Tuesday, October 25, 2016 by Marc

english 9
Read the conclusion about “The Beginnings of the Maasai,” and then answer the question. One purpose of “The Beginnings of the Maasai” is to explain the weather. Which excerpt best justifies this conclusion? The sky god is powerful, but can change from ...
Tuesday, October 25, 2016 by madison

Math
A year on Mars is 1.88 Earth years. If you are 13 years old on Earth, how old would you be on Mars? I don't know if I am supposed to multiply or divide. I also don't understand what the question is trying to state. Thanks
Tuesday, October 25, 2016 by Anonymous

georgraphy
In the following passage written by a conquistador in 1540, what can you infer about how sick citizens were treated? “No one who was lazy or tried to live by the work of others was tolerated; everyone had to work. Thus on certain days each lord went to his lands and took ...
Monday, October 24, 2016 by Jay

MATH HELP
Monica stepped outside and began to think how fast she is moving even when she is standing still. Assume that the earth is a sphere with a radius of 3960 miles and Monica is at a latitude of 13∘N. What is Monica's speed due solely to the rotation of the earth in ...
Monday, October 24, 2016 by Carly

Math
Monica stepped outside and began to think how fast she is moving even when she is standing still. Assume that the earth is a sphere with a radius of 3960 miles and Monica is at a latitude of 13∘N. What is Monica's speed due solely to the rotation of the earth in ...
Monday, October 24, 2016 by Todd

Mathematics
Monica stepped outside and began to think how fast she is moving even when she is standing still. Assume that the earth is a sphere with a radius of 3960 miles and Monica is at a latitude of 13∘N. What is Monica's speed due solely to the rotation of the earth in ...
Monday, October 24, 2016 by Sal

Math
Monica stepped outside and began to think how fast she is moving even when she is standing still. Assume that the earth is a sphere with a radius of 3960 miles and Monica is at a latitude of 13∘N. What is Monica's speed due solely to the rotation of the earth in ...
Monday, October 24, 2016 by Anonymous

math please
Before electricity, nights in towns and fields were often times pitch black, except when there was a full moon. How many times brighter is the noonday sun than the full moon when the moon is at the closest point to the earth? Model the moon as a sphere of radius 1,000 miles (1...
Sunday, October 23, 2016 by Dip

science
assuming the earth to be a sphere of uniform density,what will be the value of g in a mine 100th below the earth surface.Given r=6400 km and g=10m/s.
Sunday, October 23, 2016 by Aditya

Physics
Weight of an object on the surface is 100N . What will we it's weight a planet whose mass 10times that of earth and radius is 3 times as that of earth??
Sunday, October 23, 2016 by Rani solanki

physics
The center of a 1.00km diameter spherical pocket of oil is 1.00kkm beneath the Earth's surface. Estimate by what percentage g directly above the pocket of oil would differ from the expected value of for a uniform Earth? Assume the density of oil is 8.0*10^2kg/m^3. Δg/...
Saturday, October 22, 2016 by katie bornia

physics
Question 6) Oil and gas exploration companies find new underground deposits by measuring (with incredible precision) the value of g at the Earth's surface. EXTRA INFO GIVEN: The challenge: F=Gm1m2/r^2 ONLY works for two cases: point masses, or if one of the masses has ...
Saturday, October 22, 2016 by katie bornia

Science
suppose a skydiver (mass = 75 kg) is falling toward the earth. when the skydiver is 100 m above the earth he is moving at 60 m/s. at this point calculate the skydiver's
Saturday, October 22, 2016 by Michelle

earth science
Compare the formation processes of igneous, sedimentary, and metamorphic rocks. In general, which process can be the most direct, requiring the fewest number of steps? Which can be the most complex? I am guessing igneous rocks are the easiest because the formation process ...
Friday, October 21, 2016 by sasha

physics qui
The radius of the Earth is 6.37×1000000 m and its average dencity is 5.517×1000kg/m×​;m×m.calculate the mass of earth to correct significant figures.
Friday, October 21, 2016 by Anonymous

Science
For many years it was believed by geologists that the location of the continents was fixed.These scientists believed that the locations of the continents was determined many billions of years ago,as the young Earth cooled down from its original state as a ball of molten lava....
Thursday, October 20, 2016 by Donald

science
What is the geologic time scale and what are some thing scientists use it for (at least two things)? Here's my answer could you please verify. the geologic time scale is a record of the geologic events and life forms in Earth’s history. Scientists use it to understand...
Thursday, October 20, 2016 by John

english
In An Inconvenient Truth Earth is called the Goldilocks planet because A) The sun is at a balanced distance B) It has a significant wildfire population C) It's neither too hot or too cold for life D) The mineral content, especially cold and gold. I think it's C or A
Wednesday, October 19, 2016 by Dude

  1. Pages:
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  7. 6
  8. 7
  9. 8
  10. 9
  11. 10
  12. 11
  13. 12
  14. 13
  15. 14
  16. 15
  17. Next>>

Homework Help: Science