BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 44, Problem 9SA
Summary Introduction
Introduction:
The Montreal Protocol was designed to end the production of ozone depleting substances (ODS) to decrease their atmospheric concentration and to protect the ozone layer of the earth. It is an international agreement made in 1987 by the United Nations. The ozone layer prevents the harmful solar ultraviolet radiation, which causes skin cancer and cataracts, decreased agricultural productivity, and interruption of marine ecosystems.
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The main cause of the increase in the amount of CO2 in Earth’satmosphere over the past 150 years is(A) increased worldwide primary production.(B) increased worldwide standing crop.(C) an increase in the amount of infrared radiation absorbedby the atmosphere.(D) the burning of larger amounts of wood and fossil fuels
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- Which biogeochemical cycle does not have a gaseous component but cycles from the land to sediments in the ocean and back to the land? (a) carbon cycle (b) nitrogen cycle (c) phosphorus cycle (d) hydrologic cycle (e) neither a nor c has a gaseous componentarrow_forwardWhat gas is a human-made pollutant in the lower (surface) atmosphere but a natural and beneficial gas in the stratosphere? (a) CO2 (b) CH4 (c) O3 (d) CFCs (e) N Oarrow_forwardHuman use of fossil fuels has what consequences? Group of answer choices a. increase in CO2 concentration in the atmosphere b. return of fossilized carbon to the active carbon cycle c. increase in global temperatures d. all of the other optionsarrow_forward
- If there are many greenhouse gases, why is only carbon dioxide considered a cause of global warming?a. The other gases do not cause global warming.b. It isn’t. Scientists are concerned about other causes; for example, release of methane from melting permafrost could have significant effects on global warming.c. Other gases occur in such low quantities that they have little effect on the climate.d. Carbon dioxide is the only gas that absorbs long-wavelength infrared radiation.arrow_forwardWhen the sulfur dioxide released from burning fossil fuels reacts with water vapor in clouds, sulfuric acid forms. a. Is sulfuric acid a primary or secondary pollutant? b. Is the pollution in this example point or non-point? C.Is the pollution in this example acute or chronic?arrow_forwardWhich type of UV radiation does the ozone block the most of? a. UV-B radiation b. UV-A radiation c. All UV radiation d. UV-C radiationarrow_forward
- Burning fossil fuels results in the emission of ________________ into the atmosphere. a. CO2 b. O2 c. none of the above d. ozonearrow_forwardWhich of the following statements about the carbon dioxide emitted to the atmosphere by human activities each year is most accurate? a. About half of it remains in the atmosphere and the other half is split equally between uptake by the oceans and vegetation. b. Nearly all of it remains in the atmosphere. c. About half of it dissolves in the oceans. d. On an annual basis, human-caused emissions of carbon dioxide are small compared to volcanic emissions. e. Human-caused emission of carbon dioxide is much greater than that emitted by respiration of all plants, animals, and microorganisms.arrow_forwardEarth’s largest carbon reservoir is______ . a. the atmosphere c. seawater b. sediments and rocks d. living organismsarrow_forward
- Which of the following is not a fossil fuel? a. natural gas b. coal c. wood d. petroleumarrow_forwardwhat do you think could be done to reduce levels of carbon dioxide in the atmosphere? What could people change that would reduce the burning of fossil fuels?arrow_forwardCarbon is present in the atmosphere as ________. a. carbon dioxide b. carbonate ion c. carbon dust d. carbon monoxidearrow_forward
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