QUESTION 3 As a result of different types of air pollution, the amount of ozone

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QUESTION 3

As a result of different types of air pollution, the amount of ozone gas has been increasing in (the) ___________, but decreasing in (the) ___________.

troposphere-stratosphere

stratosphere-troposphere

outer space-troposphere

none of these

QUESTION 4

Depletion of the "ozone layer" is caused by the release of chemicals such as

sulfuric acid.

ozone gas.

carbon dioxide.

chloroflorocarbons (CFC's).

QUESTION 5

Humans often accelerate the process of eutrophication or lake "aging" which often leads to "algal blooms". Water pollutants coming from which substances are usually responsible for this?

heavy metals from industry

concentrated acids

nutrients from fertilizers or detergents

oil   

QUESTION 6

Identify the type of natural resources that exist in a fixed quantity, or stock, in the earth’s crust. On a time scale of millions of years, geological processes can renew such resources, but in terms of shorter human time scales, we can deplete this type of resource faster than nature can form them.

fossil fuels

food resources

solar energy

cultural resources

QUESTION 7

Increased pollution emitted into the air, land, and water due to the increased use of machines in factories for large scale production of goods occurred during which cultural revolution?

The Industrial Revolution

The Agricultural Revolution

The Information-globalization Revolution

The Sustainable Revolution

QUESTION 8

Industrialized agriculture

is practiced on about 90% of the world's cropland.

is more common in less developed countries than it is in more developed countries.

produces most of the world's food today.

none of the above

QUESTION 9

Industrialized livestock production generates 18% of the world's climate-changing greenhouse gases, which is more than all of the world's cars, buses, and planes. Most
of this comes from

pig farms.

rotting livestock food.

cattle belching.

chicken manure.

QUESTION 10

It is true that

the energy stored in fossil fuels ultimately came from the sun.

energy can neither be created nor destroyed.

high quality energy can be converted to low quality energy.

All of the above statements are true.

QUESTION 11

It is true that

up to this point the U.S. has not had a great "Ecological Footprint" because our population growth has been relatively slow.

up to this point, less developed countries have caused most of the environmental degradation to this planet.

in the near future, China is expected to surpass the U.S. as the world's greatest consumer of oil.

the world's oil supply is expected to run out completely within 20 years.

QUESTION 12

Of the different types of water pollutants, which of the following will not eventually be broken down by microorganisms?

organic waste from sewage

heavy metals

oil

both "a" and "c"

QUESTION 13

Of the following types of fossil fuels, which releases the smallest amount of air pollution when burned?

wood

natural gas

coal

oil

QUESTION 14

Of the various types of "greenhouse gases", which is the one that is generally considered to be the single most important gas that results from human activities and contributes to global warming?

sulfur dioxide

nitrogen gas

ozone gas

carbon dioxide

QUESTION 15

Organisms that are __________ are generally found at the base of food webs on earth because they are the ultimate source of food for all other types of organisms.

Decomposers, such as fungi or bacteria,

Consumers, such as animals,

Producers, such as plants or microscopic algae,

none of the above

QUESTION 16

Photochemical smog is caused primarily by the formation of __________, which occurs most often, with the burning of fossil fuels under sunny, warm conditions.

ozone gas

carbon dioxide

nitrogen gas

water vapor

QUESTION 17

Which of the following is a true statement?

Precipitation is the primary limiting factor that controls the vegetative character of a biome.

Climate determines where humans or other species can live and thrive.

Without wind currents and the ocean currents, it is reasonable to expect that the tropics would be unbearably hot and the rest of the world would be freezing cold.

All of the above statements are true.

QUESTION 18

Which of the following statements identifies an effect of pollution?

Diversity of aquatic life declines due to fertilizer runoff into lakes.

Over thirty percent of the freshwater rivers in the United States are not suitable for swimming.

rising temperatures increase coastal flooding and impact homes next to the ocean.

all of the above

QUESTION 19

Which of the following statements is false?

The Chinese government's "one child" policy has resulted in much lower total fertility rates and has slowed the growth of the country's population.

Less developed countries usually have lower total fertility rates than more developed countries have.

Less developed countries usually have higher infant mortality rates than more developed countries have.

The population of the United States is still growing today, but at a lower rate than that of most less developed countries.

QUESTION 20

Which of the following statements is true?

Emerging shortages of water for drinking and irrigation in many parts of the world is one of the most serious environmental problems the world faces during this century.

The United States is the world's largest user of water.

Water is a national security issue.

all of the above

a)

troposphere-stratosphere

b)

stratosphere-troposphere

c)

outer space-troposphere

d)

none of these

Explanation / Answer

3) troposphere, Stratosphere

The ozone in troposphere is toxic while ozone layer in Stratosphere shield us from ultraviolet rays

4) chlorofluorocarbons

Chlorofluorocarbons like bromine and chlorine are the main elements that are depleting ozone layer

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