1. Major causes of extinction of different species includes.

A. habitat loss and over-hunting

B. climate change and pollution

C. deforestation

D. all of the above.

2. Conservation of living resources is a complex operation and is concerned

with ___________________.

A. plants and animals

B. All living organisms and nonliving elements of the environment on which

they depend.

C. Protection of wildlife and the forests in which these inhabit.

D. plants, animals, and microbes

3. Which is the most scientific way to conserve the plant diversity of an area?

A. By developing seed banks C. by creating biosphere reserves

B. by tissue culture method D. by creating botanical gardens

4. Most of the endangered species are victims of ___________.

A. acid rain

C. habitat destruction

B. competition with introduced species

D. over hunting

5. What type of energy is derived from heated groundwater?

A. solar energy

C. hydroelectric energy

B. geothermal energy

D. nuclear energy6. Fossil fuels are classified as nonrenewable because they________.

A. Require expensive equipment. C. Can be found all over.

B. Take millions of years to replace. D. Provide all the energy we use.

7. Wind, geothermal, and solar energy are all what type of energy

resources?

A. cheap B. potential

C. renewable

D. chemical

8. Paulo and David are cruising down the interstate on a motorcycle. They're

burning gas like crazy. What would be an effect on the environment?

A. water pollution

C. air pollution

B. land pollution

D. None of these

9. Conservation is the act of conserving, or protecting the environment,

plants, and animals. What are some things you can do to help conserve

our environment?

A. Leave water on, leave TV on, run dishwasher with 1 plate.

B. Run the washing machine with 1 shirt.

C. Leave the refrigerator door open.

D. Turn off water, turn off lights, turn off TV.

10. Air, water, plants, animals, soil, rocks, minerals, crude oil, and other fossil

fuels are called natural resources because _______.

A. They are made by people.

C. Not sure

B. They are not made by people.

D. All of these​