Energy resources, Global Climate, Earth's Processes

The ultimate source of energy for most producers

• plants

• animals

• oxygen

• sun

the wise and careful use of energy resources is called

• conversation

• conservation

• utilization

• recycling

Petroleum, natural gas, and coal are three kinds of

• nuclear wastes

• fossil fuels

• synthetic fuels

• nuclear fuels

electricity produced by falling water is called

• tidal energy

• thermodynamics

• hydroelectricity

• geothermal energy

Which of the following is an example of a nonrenewable source of energy?

• wind

• water

• solar

• coal

The most abundant fossil fuel is

• natural gas

• petroleum

• coal

• uranium 238

Renewable organic matter, such as wood, grass clippings, and rice hulls, are examples of

• nuclear fuels

• fossil fuels

• biomass

• fission products

Atmospheric pressure is greatest at

• warm locations

• sea level

• high altitudes

• top of the troposphere

The most abundant gas in the atmosphere by volume is

• oxygen

• carbon dioxide

• nitrous oxide

• nitrogen

Without Earth's natural greenhouse effect

• Earth would be too hot for life to exist

• Ultraviolet light would destroy much of life on Earth.

• Our atmosphere would become clogged with ozone and other harmful chemicals.

• Earth’s temperatures could become too extreme to support life as we know it.