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Test 4- SCI 102
Chapt 15-18
47
Science
Undergraduate 1
04/17/2013

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Term
Primary sewage treatment involves
Definition
A. Removing solids from water
Term
Feedlots are a major cause of _________ in water.
Definition
A. Viruses
B. Coliform bacteria
C. Nitrates
D. Phosphates
E. All of these are correct*
Term
Toxic metals such as lead, cadmium and mercury
Definition
C. Can be toxic in extremely small quantities
Term
Cultural eutrophication results from
Definition
D. Human activity
Term
The water pollutant that most commonly threatens human health is
Definition
A. Pathogenic organisms
Term
Factories, sewage treatment plants and oil wells are __________ sources of water pollution.
Definition
A. Point
Term
The United States has a drought cycle that brings dry periods about every ____ years
Definition
C. 30
Term
Which of the following factors is the most important factor in determining whether a country is "water rich" or "water poor"?
Definition
E. Renewable water supplies
Term
A country's renewable water supplies are generally made up of
Definition
A. Surface runoff and infiltration into accessible aquifers
Term
The largest river in the world is the
Definition
B. Amazon
Term
Water enters groundwater by
Definition
A. Infiltration
Term
The hydrologic compartment that contains the greatest amount of fresh water is
Definition
D. Ice and snow
Term
Natural evaporation processes are mainly driven by
Definition
C. Solar energy
Term
Evaporation is
Definition
B. Liquid water turning to vapor well below boiling temperature
Term
Transpiration is the way plants
Definition
A. Return large amounts of water to the atmosphere
Term
Which of the following is not a factor in determining how much or how little precipitation a region receives?
Definition
C. Vegetation
Term
Many fish contain high levels of _____________ and should either not be eaten or their consumption should be limited.
Definition
B. Mercury
Term
The most common metallic air pollutant is
Definition
E. Lead
Term
Lead is dangerous because it acts as a(n)
Definition
A. Neurotoxin
Term
The most dangerous airborne particulates are those
Definition
B. Small enough to be drawn into the lungs
Term
Carbon monoxide is produced by
Definition
C. Incomplete burning of fuels
Term
The brown haze in smog is caused by
Definition
B. NO2
Term
Which of the following criteria pollutants result mainly from burning coal
Definition
B. Sulfur dioxide
Term
Criteria pollutants are those that
Definition
A. Contribute the most to air quality degradation
Term
Fugitive emissions are produced by
Definition
D. Strip mining, rock crushing and other dust-producing activities
Term
Secondary pollutants
Definition
B. Become dangerous after reacting in the atmosphere
Term
Primary pollutants are those that are
Definition
A. Released directly in dangerous forms
Term
Quicksilver is another name for
Definition
E. Mercury
Term
Much of the ultraviolet light from the sun is absorbed by _______ as it passes through the atmosphere.
Definition
D. Ozone
Term
The "ozone hole" that causes concern among scientists and the public is an ozone depletion in the
Definition
B. Stratosphere
Term
The correct sequence of atmospheric zones upward from the earth's surface is
Definition
B. Troposphere, stratosphere, mesosphere, thermosphere
Term
Aerosols are
Definition
B. Tiny particles and droplets suspended in the air
Term
The two main gases making up the lower atmosphere are
Definition
D. Nitrogen and oxygen
Term
The atmospheric zone where most weather events occur is the
Definition
C. Troposphere
Term
The earth's earliest atmosphere was probably composed mainly of __________, which has/have since largely dissipated into space.
Definition
A. Hydrogen and helium
Term
Climate is a description of ________ weather conditions.
Definition
A. Long-term, regional
Term
What causes sea water to become less salty?
Definition
a. Melting sea ice
b. River inflow
c. Rain
d. All of the above*
Term
Water at the seafloor is saltier than water at the sea surface.
Definition
a. True
Term
On average, how much salt is there in 1,000 pounds of seawater?
Definition
c. 35 pounds
Term
El Nino is the result of global warming
Definition
a. True
Term
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?
Definition
a. Warming of ocean surface waters
Term
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.
Definition
a. True
Term
According to NOAA, a climate literate person
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*
Term
Which ocean is the saltiest?
Definition
a. Atlantic
Term
Water near the seafloor is saltier than water at the sea surface
Definition
a. True
Term
Changes in oceans salinity patterns may indicate changes in
Definition
a. Ocean circulation
b. Earth’s water cycle
c. Climate
d. All of the above*
Term
Salinity is a measure of what property of seawater?
Definition
b. Saltiness
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