environmental science

Popular questions
  1. Environmental Science

    1. Decibel is a measurement of the amount of pollution (True or False) 2. Non-Point-Source pollution can be traced to one specific source (True or False) 3. Point-Source pollution is pollution that comes from identifiable locations. (True or False) 4.

    asked by FMSLION on November 7, 2017
  2. Environmental Science

    1. A prion is an infectious, self-reproducing protein structure. True X False 2. As one organism eats another, toxins can be spread throughout the food chain. True False x 3. The problem with DDT in the environment is that it decomposes quickly. True False

    asked by Steve on October 10, 2017
  3. Environmental Science

    Generators convert physical energy into ____ A. sound waves B. Electrical energy -- C. Batteries D. Motors

    asked by Yo, you should help me ;) on March 14, 2018
  4. Environmental science

    A municipal landfill has available space of 16.2 ha at an average depth of 10 m. Seven hundred sixty-five (765) m3 of solid waste is dumped at the site 5 days a week. The waste is compacted to twice its delivered density. Draw a mass-balance diagram and

    asked by Jazmin on January 28, 2011
  5. Environmental science

    what is the difference between primary and secondary succession

    asked by Coreen on November 23, 2008
  6. Environmental Science

    #52. In two or three well-developed paragraphs, list and describe the importance of the four steps in a simple environmental decision-making model. my answer: A decision-making model is a conceptual model that provides a systematic process for making

    asked by y912f on February 24, 2010
  7. Environmental Science

    Generators convert energy physical energy into _____ A. Sound waves B. Electrical energy-- C. Batteries D. Motors

    asked by Anonymous on March 14, 2018
  8. Environmental Science

    Could you please explain the distinction between eutrophication and artifical eutrophication sense eutrophication is the natural process by which a body of water gains an abundance of nutrients? One is natural and occured long before man's time. The other

    asked by Mack on April 20, 2007
  9. Environmental science

    Each month the Speedy Dry Cleaning Company buys one barrel (0.160 m3) of dry cleaning fluid. Ninety percent of the fluid is lost to the atmosphere and 10% remains as residue to be disposed of. The density of the dry cleaning fluid is 1.5940 g/mL. Draw a

    asked by Jazmin on January 28, 2011
  10. Environmental Science

    Many areas of the world that do not have adequate fresh water have become habitable because a.rainfall patterns have changed b.water management projects have diverted water to the areas c.icebergs have been towed in to provide fresh water d.people have

    asked by Mack on April 20, 2007
  11. Environmental Science

    Name another cause of artificial eutrophication. (Is it bar b queing?)

    asked by Mack on April 20, 2007
  12. Environmental Science

    Reclamation is the process of A) removing coal from a subsurface seam. B) extracting ore minerals from gangue minerals. C) returning land to its original or better condition after mining. D) protecting the habitats of local wildlife. I think the answer is

    asked by M, S, E, on April 22, 2017
  13. Environmental Science

    I need help on this question: 29. A common feature of thermal pollution and artificial eutrophication is that they both a. have sources that are difficult to identify and control b. cause large mats of algae to bloom in fresh water c. are a result of power

    asked by y912f on January 19, 2010
  14. Environmental Science

    Ninety seven percent of the world's water resources are found in a.fresh water b.salt water c.icecaps and glaciers d.groundwater This is my Science test that i got back from my Science teacher. My grade is a 69 0n it. She told me to work and check on it

    asked by Mack on April 20, 2007
  15. Environmental Science

    Debate the claim that famines are caused more by human actions (or inactions) than by environmental forces. What scientific evidence would you need to have to settle this question? What hypotheses could you test to help resolve the debate?

    asked by Anonymous on March 29, 2011
  16. Environmental Science

    Which of the following is a source of point pollution? a.unlined landfill b.runoff from city streets c.precipitation containing air pollution d.runoff from farms d Yep, it is d.

    asked by Mack on April 20, 2007
  17. Environmental science

    Estimate the chronic daily intake of 1,1,1-trichloroethane from exposure to city water supply that contains a 1,1,1-trichloroethane concentration equal to the drinking water standard of 0.2 mg/L. Assume the exposed individual is a child who consumes water

    asked by Jazmin on February 16, 2011
  18. environmental science

    Explain the main point concerning exponential growth and whether it is good or bad. Compare exponential growth to a logistic growth curve and explain how these might apply to human population growth. What promotes exponential growth? What constrains

    asked by len on November 2, 2011
  19. environmental science

    Suppose a trout eats a smelt and then the human eats the trout. About how many of the original 1000 calories contained in the algae reach the human? 30 calories makes it into the smelt so only about 6 calories make it to the humans who ate the smelt.

    asked by sue on September 9, 2017
  20. Environmental science

    can someone help me on this question please: 27. The tundra is most suitable to a vertebrate that a. requires nesting sites in tall trees b. is cold blooded c. has a green outer skin for camouflage d. can migrate hundreds of kilometers each summer i've

    asked by y912f on January 6, 2010
  21. Environmental Science

    What kind of natural disasters help some forest communities by allowing some trees to release their seeds, by clearing away deadwood, and by encouraging new growth? Look up the effects of forest fires on forest communities. Especially the California

    asked by Qiayamah on December 22, 2006
  22. Environmental Science

    1. The main provisions of the Endangered Species Act include all of the following EXCEPT: a. individuals may not destroy the habitats of endangered species b.one may not catch or kill, uproot, sell or trade any endangered or threatened species. c. the

    asked by Cheryl on January 6, 2012
  23. Environmental Science

    Describe an energy pyramid that could be present in a small garden.

    asked by Qiayamah on December 22, 2006
  24. Environmental Science

    Most of the oil that pollutes the ocean comes from a.operating boats and personal watercraft b.spills from oil tankers c.runoff from cities and towns d.leaking underground storage facilities I picked d. That made sense to me. something that is leaking from

    asked by Mack on April 20, 2007
  25. Environmental Science

    What are Nitrogen fixing bacteria living within the nodules on the roots of plants called ? Microrhizie (Rhibozomes)

    asked by Qiayamah on December 22, 2006
  26. environmental science

    Where can I find info on cultivation practices that can be used to help control pests? I think some are: rotation, sowing, biological control (good bugs), timing and adjusting of harvesting...I need nine cultivation practices. I'm not sure I'm on the right

    asked by jules on March 17, 2007
  27. Environmental Science

    only 10 percent of the energy is passed from one trophic level to the next. Explain where the other 90 percent of the available energy goes. Thank you for using the Jiskha Homework Help Forum BUT we are here to HELP you not to DO the work for you. It is

    asked by Qiayamah on December 22, 2006
  28. Environmental Science

    Nuclear fission ____ atoms to create energy A. Heats B. Corrodes C. Splits D. Combines A machine that converts electrical energy into mechanical energy is called a _____ A. Generator B. Solar Panel C. Windmill D. Motor Nuclear power plants use the

    asked by I need helppppp on March 14, 2018
  29. Environmental Science

    On Earth in the extreme northern and southern latitudes, how does the relationship between GPP and NPP change during an entire year’s time?

    asked by Anonymous on October 10, 2013
  30. Environmental Science

    29. A common feature of thermal pollution and artificial eutrophication is that they both a. have sources that are difficult to identify and control b. cause large mats of algae to bloom in fresh water c. are a result of power plants and other industrial

    asked by y912f on January 27, 2010
  31. environmental science

    1. which of the below is an example of high-quality matter found near the earth's surface? a. natural gas b. mine tailings c. bauxite (al ore) d. recyclable materials in a landfill e. nitrogen gas in the atmosphere

    asked by jj on October 12, 2016
  32. Environmental Science

    7. Which of the following terms is used to describe a linear sequence in which energy is transferred from one organism to the next as each organism eats another organism? a. trophic level b. food web c. energy pyramid d. food chain D 10. Which of the

    asked by mysterychicken on April 15, 2012
  33. Environmental Science

    A hole that is dug into the ground to obtain fresh water is called a.the recharge zone b.a well c.an aquifer d.a watershed a. right? I don't agree with that... re check Try http://www.answers.com and look up each term. Then let us know what you think the

    asked by Mack on April 20, 2007
  34. Environmental Science

    #35. In two or three well-developed paragraphs, list the populations that are affected by ultriviolet light and identify the effects on each of these populations. my answer: There are four major populations that are affected by ultraviolet light. These

    asked by y912f on February 23, 2010
  35. Environmental Science

    On Earth in the extreme northern and southern latitudes, how does the relationship between GPP and NPP change during an entire year’s time?

    asked by Kayla on March 6, 2014
  36. Environmental Science

    7. Which of the following terms is used to describe a linear sequence in which energy is transferred from one organism to the next as each organism eats another organism? a. trophic level b. food web c. energy pyramid d. food chain D 10. Which of the

    asked by mysterychicken on April 15, 2012
  37. environmental science

    I am having trouble with this assignment. Please help! Larvae of a certain insect are found in pond but not in pond B. Design a controlled experiment that would help explain the observed distributio of these insect larvae. Be sure to include the following

    asked by Anonymous on May 13, 2007
  38. Environmental science

    Assume the biomass of the organism at the bottom of the trophic is 5,000 lbs. predict the approximate mass of each of the remaining levels, explain why the mass is changing.

    asked by Aria on September 24, 2017
  39. Environmental Science

    Relate the Fourth Principle of Ecosystem Sustainability to: c. biotechnology:

    asked by Hana on November 23, 2011
  40. Environmental Science

    Research Paper I need to write a research paper on coral reefs. i need to compose a research paper that deals with coral reefs and addresses enough of the questions below in order to meet the minimum page requirements for the paper (3-4 double spaced

    asked by y912f on March 15, 2010
  41. Environmental Science

    Describe how DDT moves through an aquatic food chain. Explain how this almost resulted in the extinction of the bald eagle. Read this: http://www.learner.org/jnorth/tm/DDT.html The answer is there

    asked by Qiayamah on December 22, 2006
  42. Environmental Science

    Which of the following is/are a point source of pollution? (can be multiple) A. Sewage treatment plant B. a harbor C. storm runoff D. suburban community E. farm runoff would Sewage treatment plant be the only direct source?

    asked by Student on October 2, 2018
  43. Environmental Science

    What is the purpose of adding alum to water during the water treatment process? a.to filter and remove large organisms and trash b.to form flocs that bacteria and other impurities will cling to c.to prevent bacterial growth d.to remove unwanted gases I

    asked by Mack on April 20, 2007
  44. Environmental Science

    Ex: [Cu] in river is 30 ppb, what is the molar concentration?

    asked by Zukii on January 21, 2011
  45. Environmental Science

    34. In two or three well-developed paragraphs, list four federal laws that relate to mining and reclaiming mined land, and state examples of provisions of each. Can I please get some help on this question? Thank you.

    asked by y912f on March 15, 2010
  46. Environmental Science

    I need help trying to figure out what the main idea of the passage is because I don't really understand it. The natural process of eutrophication is accelerated when inorganic plant nutrients, such as phosphorus and nitrogen, enter the watr from sewage and

    asked by Mack on April 20, 2007
  47. Environmental Science

    Your grandparents, who loves to garden, are thinking about buying a house in a country. Next weekend, they are going to look at two houses. One has a large garden that is part of a small farm that was abandoned 25 years ago. Use what you know about

    asked by Qiayamah on December 22, 2006
  48. environmental science

    Ecologists designed an experiment to determine if nitrates or phosphates are more limiting to algae growth. They divided a lake in Canada into two equal-sized sections by a vinyl curtain. Then they fertilized each sub-basin of the lake, one with nitrates

    asked by jj on October 12, 2016
  49. environmental science

    Describe and compare total resource use per capita in developed and developing countries. I know that resource use per capita in developed nation must be much larger than that of developing countries but I don't know how much larger. Please help! Check

    asked by Anonymous on May 13, 2007
  50. Environmental Science

    We are being asked to identify reasons that an article is or is not science using the list of 8 characteristics of science. What are the 8 characteristics of science?

    asked by Alexa on October 5, 2008
  51. environmental science

    How does your footprint compare to the national average for Canada? Are you asking about an actual footprint? Or are you asking about your own environmental "footprint?" An environmental "footprint." How do you think your environmental footprint compares

    asked by Cho on August 21, 2007
  52. Environmental Science

    How is fresh water used in industry? a.in manufacturing processes b.in the disposal of waste products c.to generate power d.all of the above i picked b. I'm no expert on environmental science, but wouldn't it be (d)? I thought that because: a. People use

    asked by Mack on April 20, 2007
  53. Environmental Science

    Explain how the nitrogen used for making proteins in a lion's body traveled from the atmosphere to the lion. How will it be returned to the atmosphere after the lion dies? Google Nitrogen cycle animal

    asked by Qiayamah on December 22, 2006
  54. environmental science

    the warming of the oceans causing less carbon dioxide to be soluble in them, and at the same time leaving more carbon dioxide in the atmosphere causing an increased warming of the atmosphere, is a example of a a. model of a system showing a paradigm shift.

    asked by jj on October 12, 2016
  55. environmental science

    what are the two main factors that determine where organisms live?

    asked by justice on March 19, 2015
  56. Environmental Science

    #33. In two or three well-developed paragraphs, explain how water is treated so that it can be used for safe drinking water. Include definitions of the terms potable and pathogens. my answer: There are many steps to how water is treated so that it can be

    asked by y912f on February 23, 2010
  57. environmental science

    Please help me on this: 1. Wind can blow soil away very quickly and erode soft rock, while waves erode coastlines and rivers carve deep gorges True or False i think the answer is true but i'm very unsure

    asked by y912f on August 31, 2009
  58. Environmental Science

    India’s prime minister puts you in charge of that nation’s population policy. India has a population growth rate of 1.6% per year, a TFR of 2.7, a 49% rate of contraceptive use, and a population that is 71% rural. What policy steps would you recommend,

    asked by Aly on September 28, 2014
  59. Environmental Science

    #34. In two or three well-developed paragraphs, name and describe the five primary air pollutants and provide several sources of each. my answer: There are five primary air pollutants and some sources of each of them. The first pollutant is Carbon monoxide

    asked by y912f on February 23, 2010
  60. Environmental Science

    A local lake is experiencing algal bloom and many of the fish are dying. Explain why this may be occurring. Phosphates from agribusiness ruinoff?

    asked by Qiayamah on December 22, 2006
  61. environmental science

    How many deaths occur due to water borne disease in countries with chlorinated water systems? I have been trying to find this statistic. Can someone please give me a reference. Thank you

    asked by health on February 11, 2011
  62. Environmental Science

    Please check my answers. 29. In two or three well-developed paragraphs, explain how pollutin can come from both natural sources and from human activities. Provide examples of each. It is true that pollution can come from both natural sources and from human

    asked by y912f on March 9, 2010
  63. environmental science

    Please check this: Scientists use statistics to a. graph data b. analyze data c. communicate ideas to each other d. all of the above B ( in my book it says: scientists rely on and use statistics to summarize, characterize, analyze, and compare data.

    asked by y912f on August 27, 2009
  64. Environmental Science

    A nuclear burning power plant produces a total power of 1.1kW. It serves a community that requires 2.85 x 107 kJ of power over the entire year. How many days per year does the power plant need to operate to provide all this power? 300 days 250 days 365

    asked by Kayla on December 22, 2013
  65. environmental science

    If you were an environmental researcher and were given funding to assist with one environmental issue, which of the following topics would you choose to spend your funds on?

    asked by jane on January 14, 2008
  66. Environmental Science

    What is a process within the cell of an organism that uses glucose and oxygen to produce carbon dioxide, water, and energy called? It could be called oxidation (by a chemist), or metabolism (by a biologist). The body metabolizes glucose in various ways.

    asked by Qiayamah on December 22, 2006
  67. environmental science

    What types of volcanic eruptions causes a cooling effect? What types of volcanic eruptions causes a warming effect? List gases involved for each.

    asked by Mandy on February 9, 2019
  68. Environmental Science

    In order to have positive or negative environmental impacts included in the GDP countries must place value on natural capital. Identify and describe one way to estimate the non-use value of natural capital.

    asked by Kyla on February 26, 2014
  69. Environmental Science

    are these correct? 29. A common feature of thermal pollution and artificial eutrophication is that they both a. ave sources that are idfficult to identify and control b. cause large mats of algae to bloom in fresh water c. are a result of power plants and

    asked by y912f on February 1, 2010
  70. Environmental Science

    Polluted groundwater is difficult to clean up because a.groundwater is deep in the ground and dispersed through large areas of rock. b.pollutants cling to the materials that make up the aquifer and contaminate the clean water c.the recycling process of

    asked by Mack on April 20, 2007
  71. Environmental Science

    What steps do you think can be taken to reduce the harmful effects of human activities on biogeochemical cycles? Which businesses would these changes impact the most? Thank you for using the Jiskha Homework Help Forum. Here are some links on life and

    asked by Sheila on March 15, 2007
  72. Environmental Science

    What effect could an uncontrolled grass carp population have on the energy pyramids of a lake environment?

    asked by Qiayamah on December 22, 2006
  73. Environmental Science

    True or False: 28. Hydroelectric energy is produced by flowing water turning a turbine which generates electricity. TRUE 32. Geothermal energy is generated when heated water or steam is pumped up from inside the Earth to power a turbine that generates

    asked by y912f on March 1, 2010
  74. Environmental Science

    #54. In two or three well-developed paragraphs, define and list two characteristics of each of the following: coastal wetlands, coral reefs, and oceans. I'm not sure what it means by defining and listing two characteristics. here's my answer: Coastal

    asked by y912f on February 24, 2010
  75. Environmental Science

    1. How has the size and location of big cities changes since the year 1900? 2. Describe the major problems in today's large cities and the cause of these problems. 3. What can be done to help solve these problems? 4. You may never live in a big city, but

    asked by lisa on February 24, 2010
  76. Environmental Science

    Here is a sentence that says: In bodies of water polluted by phosphorus, algae can form large floating mats, called algal blooms. What substance causes an alfal bloom to form? (I don't understand the sentence) That's "algal bloom" See:

    asked by Mack on April 20, 2007
  77. Environmental science

    How does the motion of lithosphere affect the environments?

    asked by Harris on November 2, 2018
  78. Environmental Science

    Answer the questions about the following processes in the space provided below. You only need to indicate a process by its number. For each question list as many processes as apply. Process 1: 6 CO2 + 6 H2O → C6H12O6 + 6 O2 Process 2: C6H12O6 + 6 O2 →

    asked by Sydney on August 18, 2014
  79. environmental science

    why are cultivation practices for pest control not widely used today?

    asked by hannah on December 16, 2012
  80. environmental science

    what are the sources of the following: carbon dioxide CO2 chlorofluorocarbons CFC's ground level ozone

    asked by tia on July 21, 2012
  81. Environmental Science

    In the United States we are fortunate to have an abundant supply of food, and much of this is due to our agricultural technology. However, there are many concerns about our food source including genetically modified crops, the use of more chemicals, and

    asked by Anonymous on March 28, 2011
  82. Environmental Science

    Research Paper I need to write a research paper on coral reefs. i need to compose a research paper that deals with coral reefs and addresses enough of the questions below in order to meet the minimum page requirements for the paper (3-4 double spaced

    asked by y912f on March 15, 2010
  83. Environmental Science

    True or False 30. Three alternative energy sources are tidal power, ocean thermal energy conservation (OTEC), and hydrogen. True

    asked by y912f on March 3, 2010
  84. environmental science

    i need to think of ways of how to reduce reuse and recycle waste in a theme park.any help would be great thanks!:)

    asked by ESKIE on February 8, 2010
  85. environmental science

    What are some possible effects of climate change resulting from a warmer earth? Possible effects is melting of the polar caps, and flooding on all continents. Also, weather and rainfall patterns will change, so plants and animal will have a hard time

    asked by jacqueline on May 17, 2007
  86. Environmental Science

    Which of the following is one way that a person can conserve water? a.Take a bath instead of a shower b.Wash laundry in small, partial loads c.use a low flow shower head to take short showers d.water the lawn daily and at nidday. I picked a. right? Because

    asked by Mack on April 20, 2007
  87. Environmental science

    Explain the difference between humidity, relative humidity, and dew point.

    asked by Kashwin Shiekh on December 26, 2017
  88. environmental Science

    the entire area of land that a river drains is called

    asked by Anonymous on November 26, 2014
  89. Environmental Science

    What are some common justifications for environmental policy?

    asked by Aly on September 20, 2014
  90. Environmental Science

    H.B.D. Kettlewell observed that peppered moths in the forests of England were becoming darker in color over time. In addition, he observed that pollution had turned the tree trunks black. He thought it would be easy for birds to spot and capture

    asked by Sydney on August 7, 2014
  91. Environmental Science

    Using two or three well-developed paragraphs, explain how temperature and precipitation determine which plants grow within an area and give an example.

    asked by Yazmen on July 7, 2014
  92. Environmental Science

    An effective approach to preventing future shortages of usable water should focus on?

    asked by Destinee Boydston on January 29, 2014
  93. environmental science

    is plastic use is more hazarduous or wood use in relation to their environmental impacts? kindly give me a detailed answer

    asked by ejaz on April 12, 2013
  94. Environmental Science

    23. During the period of human history known as the ____, human populations grew rapidly because of advances in farming methods. a. Industrial Revolution b. "Tragedy of the Commons" c. agricultural revolution d. hunter-gatherer period C? But it could also

    asked by mysterychicken on April 11, 2012
  95. environmental science

    The earth's differentiation and size were significant factors for life on Earth because Earth's composition and gravitational attraction

    asked by Anonymous on December 28, 2010
  96. Environmental Science

    For my Environmental Science Research Paper on Coral Reefs, I have started writing the Introduction paragraph. My teacher said to include everything that will be mentioned throughout the paper. And so I copied this paragraph from my workbook because this

    asked by y912f on April 27, 2010
  97. Environmental Science

    #33. In two or three well-developed paragraphs, explain how water is treated so that it can be used for safe drinking water. Include definitions of the terms potable and pathogens. my answer: There are many steps to how water is treated so that it can be

    asked by y912f on February 23, 2010
  98. Environmental Science

    1. How are carbon emissions related to the carbon that accumulates in the atmosphere? 2.How is carbon absorption related to the carbon that accumulates in the atmosphere? 3.What happens to carbon in the atmosphere when carbon emissions are equal to carbon

    asked by Matt on April 4, 2009
  99. Environmental Science

    List five natural resources you believe are essential for civilization. If htese natural resources become limited because man's overuse or population, how will it have an effect on the individual, community,or population level.

    asked by Bonnie on November 3, 2007
  100. Environmental Science

    Describe one way in which consumers depend on producers in a short answer.

    asked by Qiayamah on December 22, 2006

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