ENVIO SCI Q4 Testing

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Each U.S. resident uses the ecosystem resources approximately equal to what area of land?

12 hectares

Which of the following is/are negative consequences of gold mining in poor countries?

All of the options

UV radiation causes which of the following risks to living things?

DNA damage

Examine the following sentence: "Fluorescent light bulbs are better than incandescent light bulbs." This sentence MOST LIKELY means

Fluorescent light bulbs are more energy efficient.

Which of the following is NOT a common class of rock?

Hydraulic

Which of the following statements about hydrogen gas as a fuel source is correct?

Hydrogen gas can be burned as a fuel or used to produce electricity chemically.

One benefit of preserving farmland is

Increased crop production.

This mining method is used for large ore deposits near the surface that are mined downward, layer by layer.

Open-pit mining

Which of the following is NOT a method of subsurface mining?

Open-pit mining

The National Farmland Protection Program was designed to

Protect farmland from being developed.

Which of the following is NOT an environmental benefit of open spaces?

Reducing traffic flow

Which of the following is true of parks and preserves?

They provide recreation for people.

In coal mining, one of the most serious consequences is

Underground fires

When a city is growing too rapidly and cannot provide services for all citizens, this is called

Urban crisis.

A lifestyle change that can help conserve energy is

Using less of any resource.

Heat islands can affect local

Weather patterns.

A heat exchanger is used in

active solar heating

Sand, gravel, and crushed rock are all examples of __________.

aggregates

What can be done to sustain the productivity of rangeland?

all of these are correct

The energy from the sun contributes to

all the options

What would increase energy efficiency in the United States?

all the options

This term refers to two or more metals that are combined.

alloy

Stream placers often occur

at bends in rivers.

Weather is defined as a region's

atmospheric conditions on a given day.

Minerals are arranged in a regular, repeating geometric pattern of

atoms

The ozone layer protects living organisms on Earth by

blocking ultraviolet (UV) radiation.

Acid will react with rocks that contain

calcite

This is a greenhouse gas that is released into the atmosphere when fossil fuels are burned.

carbon dioxide

Ozone holes appear in polar regions during springtime when ozone-depleting

chlorine atoms are released from polar stratospheric clouds.

When forests are not replanted after trees are cut, natural resources

decrease

In order for minerals to crystallize at the bottom of a body of water, they must first

dissolve

The percentage of energy put into a system that does useful work is called

energy effiency

Which of the following is NOT one of the ways that ore minerals may form?

flooding of empty stream beds and rivers

Urban sprawl involves people moving from cities to land that was previously used for

food production and open space.

Which of the following is an example of land used as a protected area to preserve the scenery and ecosystems?

grand canyon

Gangue minerals

have no commercial value

The most energy-efficient vehicles available today are

hybrid cars

Which element might be the fuel of the future?

hydrogen

Which of the following is considered a source of alternative energy?

hydrogen fuel

In countries such as Ghana, most of the gold is found

in underground mines

Where do most Americans live?

in urban areas

Which of the following would NOT be a consequence of an increase in global temperature?

increased polar mass

_____________ is built to provide public services in urban areas.

infrastructure

The mineral galena is mainly made of

lead

Which of the following has NOT resulted from urban sprawl?

overgrazing

Which of the following molecules can be decomposed by chlorine atoms?

ozone

CFCs are still a threat to atmospheric ozone because they

persist and continue to break down ozone for decades.

Eliminating invasive plants and replacing them with native plants is one aspect of

range improvment

Reclamation is the process of

returning land to its original, or better, condition after mining operations have been

An area with a relatively sparse human population would be called ___________.

rural

Which of the following would NOT be considered an aggregate?

sea glass

Crushed ore is melted at high temperatures to separate impurities from molten metal during

smelting

From whom must mining companies obtain permits before mining a site?

state and federal agencies

The process by which land sinks with little or no horizontal movement is known as

subsidence.

Elevation is a factor in climate because under most conditions,

temperature falls as elevation increases.

Seasonal changes in daylight hours and climactic conditions are caused by

the 23.5 degree tilt of Earth's axis.

Given that most people live in urban areas, why should rural areas be preserved

they provide ecological services.

In cities, traffic jams, substandard housing, and pollution can be the result of

urban crisis

Which environmental problem is NOT caused by deforestation?

urban sprawl

Which type of area listed below is protected from exploitation?

wildrness


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