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Primary sewage treatment involves |
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Definition
A. Removing solids from water |
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Feedlots are a major cause of _________ in water. |
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Definition
A. Viruses B. Coliform bacteria C. Nitrates D. Phosphates E. All of these are correct* |
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Toxic metals such as lead, cadmium and mercury |
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Definition
C. Can be toxic in extremely small quantities |
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Cultural eutrophication results from |
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Definition
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The water pollutant that most commonly threatens human health is |
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Factories, sewage treatment plants and oil wells are __________ sources of water pollution. |
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The United States has a drought cycle that brings dry periods about every ____ years |
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Which of the following factors is the most important factor in determining whether a country is "water rich" or "water poor"? |
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Definition
E. Renewable water supplies |
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A country's renewable water supplies are generally made up of |
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Definition
A. Surface runoff and infiltration into accessible aquifers |
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The largest river in the world is the |
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Water enters groundwater by |
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The hydrologic compartment that contains the greatest amount of fresh water is |
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Natural evaporation processes are mainly driven by |
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Definition
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Definition
B. Liquid water turning to vapor well below boiling temperature |
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Transpiration is the way plants |
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Definition
A. Return large amounts of water to the atmosphere |
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Which of the following is not a factor in determining how much or how little precipitation a region receives? |
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Definition
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Many fish contain high levels of _____________ and should either not be eaten or their consumption should be limited. |
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Definition
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The most common metallic air pollutant is |
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Definition
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Lead is dangerous because it acts as a(n) |
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Definition
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The most dangerous airborne particulates are those |
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Definition
B. Small enough to be drawn into the lungs |
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Carbon monoxide is produced by |
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Definition
C. Incomplete burning of fuels |
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The brown haze in smog is caused by |
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Definition
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Which of the following criteria pollutants result mainly from burning coal |
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Definition
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Criteria pollutants are those that |
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Definition
A. Contribute the most to air quality degradation |
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Fugitive emissions are produced by |
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Definition
D. Strip mining, rock crushing and other dust-producing activities |
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Definition
B. Become dangerous after reacting in the atmosphere |
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Primary pollutants are those that are |
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Definition
A. Released directly in dangerous forms |
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Quicksilver is another name for |
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Definition
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Much of the ultraviolet light from the sun is absorbed by _______ as it passes through the atmosphere. |
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The "ozone hole" that causes concern among scientists and the public is an ozone depletion in the |
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Definition
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The correct sequence of atmospheric zones upward from the earth's surface is |
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Definition
B. Troposphere, stratosphere, mesosphere, thermosphere |
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Definition
B. Tiny particles and droplets suspended in the air |
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The two main gases making up the lower atmosphere are |
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The atmospheric zone where most weather events occur is the |
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The earth's earliest atmosphere was probably composed mainly of __________, which has/have since largely dissipated into space. |
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Climate is a description of ________ weather conditions. |
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What causes sea water to become less salty? |
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Definition
a. Melting sea ice b. River inflow c. Rain d. All of the above* |
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Water at the seafloor is saltier than water at the sea surface. |
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Definition
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On average, how much salt is there in 1,000 pounds of seawater? |
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El Nino is the result of global warming |
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Definition
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Other than melting glaciers and ice sheets, which of these factors has made the largest contribution to the rise of sea level over the past 100 years? |
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Definition
a. Warming of ocean surface waters |
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According to NOAA….Throughout its history, Earth’s climate has varied, reflecting the complex interactions and dependencies of the solar, oceanic, terrestrial, atmospheric, and living components that make up planet Earth’s systems. |
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According to NOAA, a climate literate person |
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Definition
a. Understands the essential principles of Earth’s climate system, b. Knows how to assess scientifically credible information about climate, c. Communicates about climate and climate change in a meaningful way, d. Is able to make informed and responsible decisions with regare to actions that may affect climate e. All of the above* |
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Which ocean is the saltiest? |
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Definition
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Term
Water near the seafloor is saltier than water at the sea surface |
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Definition
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Term
Changes in oceans salinity patterns may indicate changes in |
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Definition
a. Ocean circulation b. Earth’s water cycle c. Climate d. All of the above* |
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Salinity is a measure of what property of seawater? |
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Definition
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