Environment, Round 1

The three R's are

• Revise, Reduce, Respect

• Reduce, Reuse, Recycle

• Renew, Repair, Regain

• Research, Result, Respond

Global warming will cause an increase of

• heat waves

• floods

• hurricanes

• all of the above

The greenhouse effect keeps the Earth ... ; Greenhouse gases in polluted air make the greenhouse effect ...

• cool, weaker

• warm, weaker

• cool, stronger

• warm, stronger

What do greenhouse gases cause?

• more sun's rays

• a green blanket

• a blanket so the heat cannot escape

• acid rain

The task of the ozone layer is to

• protect the Earth from the harmful rays of the Sun

• trap heat

• keep the atmosphere clean

• protect the rainforests

The major source of carbon dioxide emissions by humans is

• respiration

• eating food

• cutting down trees

• burning fossil fuels

What do we call trash when it eventually decays and becomes part of the environment?

• biodegradable

• recyclable

• organic

• debatable

Which of the following is biodegradable?

• plastic

• glass

• paper

• none of them

Exhaust fumes

• cause air pollution

• are produced by hybrid cars

• are harmless

• can make tornadoes

What do you call a substance that pollutes the air, water, and soil?

• ozone

• habitat

• pollutant

• detergent