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Env. Science Final Exam
Env. Science Final Exam
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Environmental Science Final
Flashcards
50 cards
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Practice quiz
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Host live
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Questions
50
Answers
1
Most of the nutrients in soil come from
Erosian
Chemical weathering
Mechanical weathering
Decomposition
2
Which of the following is a cost of Nuclear Power?
Nuclear waste most be stored for thousands of years
Air pollution
Nuclear plants are not safe for workers
Requires a lot of uranium
3
Which is not a type of energy?
Kinetic
Thermal
Biological
Chemical
4
During the summer in the Southern Hemisphere, the Nothern Hemisphere expierences
Excess rainfall
A tilt toward the sun
Winter
Summer
5
Energy is measured in
Watts
British Thermal Units
Mega Watts
Joules
6
Why make GM crops?
Slow growth
Pest resistance
Decrease in yields
Decrease in nutrition
7
All solar energy from the sun is absorbed by the Earth's surface and converted to heat
True
False
8
Warm water is drawn away from the equator toward the poles by
La Niña
The greenhouse effect
Thermohaline circulation
El Niño
9
What is the majority of the rise in sea level?
Ice sheets melting
Ocean thermal expansion
None of the above
All of the above
10
What impact does urban development have on the local water cycle?
It increases the rate at which aquifers are refilled
Increases the amount of water absorbed into the soil
Increases the amount of runoff entering streams and rivers
It increases transpiration
11
Which of the following is not part of soil?
All of the above are part of the soil
Bacteria
Organic matter
Water
12
Percent of water in the world that is fresh (not salty) is
19.1
25
1.9
2.5
13
Climate in a region is
The atmospheric conditions on a given day
Determined by seasonal daylight hours
Never affected by ocean currents
The long-term, prevailing atmospheric conditions
14
Percent of freshwater that is frozen is
64
83
79
57
15
Percent of global water use devoted to personal/municipal uses is
20
60
45
10
16
Transpiration is the process by which water moves
From the atmosphere to ice caps and glaciers
Down through the soil into groundwater
From soil and into plants
From plants to the atmosphere
17
What is energy?
Sleeping
The ability to do work or cause change
The ability to do something different
Being able to sit around and do nothing
18
Which human activity contributes the most carbon dioxide to the atmosphere?
Breathing
Farming
Fishing
Burning fossil fuels
19
How much has carbon dioxide increased over industrial levels?
15%
50%
25%
40%
20
What gas is often found above oil or coal deposits?
Methane
Carbon Monoxide
Hydroxide
Carbon Dioxide
21
Percent of freshwater that is groundwater is
1
35
15
20
22
The largest watershed in the United States is the
Colorado River
Mississippi River
Rio Grande
Yukon River
23
Percent of global water use devoted to agriculture is
30
75
25
70
24
Most of Earth's fresh water is
Held in reservoirs behind large dams
Solidified at the North and South Poles
Suspended in atmospheric cloud formations
Stored in large underground rock structures
25
Agriculture most likely began
10,000 years ago
200,000 years ago
15,000 years ago
150,000 years ago
26
Elevation and the presence of features such as mountains and rivers make up an area's
Topography
Sequestration
Thermohaline
Greenhouse effect
27
What most directly causes hypoxia and dead zones?
Excessive growth of algae
Dead algae being decomposed & lowering dissolved oxygen
Toxic chemicals
Excess nutrients in the water
28
The United States only has what percentage of the world's energy?
16.8
30.3
21.1
10.7
29
As a farmer, you would be most concerned with the quality of the soil in the
R horizon
E horizon
A horizon
O horizon
30
The greenhouse effect is a natural process and is necessary to support to life on Earth
True
False
31
The concentration of carbon dioxide in the atmosphere is decreasing
True
False
32
The Greenland and the Antarctic ice sheets have been _____________ in mass every year
Decreasing
The same size
Increasing
33
Scientists can extract samples of ancient air from ice cores
False
True
34
Which of the following is a nonrenewable source?
Flowing water
Wind
Heat from earth
Nuclear energy
35
Generally, the farther a place is from the equator, the warmer its climate will be
True
False
36
A large area of crop land seeded with one crop is a(n)
Monoculture
Polyculture
Traditional faring technique
Organic practice
37
______________ agriculture is best defined by its reliance on fossil fuels & mechanization
Industrial
Traditional
Sustainable
Organic
38
Which of the following is a renewable source?
Fossil Fuels
Nuclear Energy
Coal
Wind
39
Gases such as methane and carbon dioxide that trap heat near Earth are known as
Greenhouse gases
Global gases
Offset gases
Proxy gases
40
Percent of freshwater that is surface water is
25
1
5
19
41
How do plants take carbon out of the atmosphere?
Photosynthesis
Respiration
Dissolve
Burning
42
Which is a benefit of Nulcear Power?
No air pollution
Cheap
The US currently has a long-term storage facility
No possible accidents can occur
43
Which can reduce the greenhouse gas emissions caused by driving?
Living further from the workplace
Taking more trips by car each day
Using public transportation
Driving gasoline-powered automobiles
44
Wind power is an energy source that gives off may greenhouse gases
False
True
45
With sustainable agriculture human population will continue to grow, one of the following won't
Food production
Animal population
Available farm land
GM crops
46
As a natural resource, fresh water is
Nonrenewable
Renewable
Ususable
Unlimited
47
Greenhouse gases in the atmosphere include:
Oxygen, hydrogen, & water vapor
Oxygen, nitrogen, & carbon dioxide
Nitrous oxide, methane, & carbon dioxide
Oxygen, carbon dioxide, & methane
48
Surfaces that reflect energy have a high albedo
True
False
49
What is cryosphere?
The dry parts of the earth
The creepiest places on earth
The frozen water parts
The unknown areas earth
50
What is a major RISK of using the processes of desalination?
Water reserve
Causes sinkholes
Overuse
Expensive
