Fossil fuels

Question 1

Natural material used by humans

Answer 1

Natural resource

Question 2

Can be replaced at the same rate of being used

Answer 2

renewable resourse

Question 3

Cant be replaced fast enough

Answer 3

Nonrenewable resourse

Question 4

recovering useful materials

Answer 4

recycling

Question 5

remains of organisms, cant be replaced.

Answer 5

fossil fuel

Question 6

liquid mixture. common fuel sourse

Answer 6

petroleum

Question 7

mixture of gasses under the earth.

Answer 7

natural gas

Question 8

decomposed plant material

Answer 8

Coal

Question 9

acid rain

Answer 9

acid precipitation

Question 10

Atoms splitting

Answer 10

Nuclear fisson

Question 11

Atoms combining

Answer 11

Nuclear fusion

Question 12

Hydrogen splitting

Answer 12

Hydrogen fuel cell veicle

Question 13

Taking Energy from the sun.

Answer 13

Solar energy

Question 14

Energy from sails

Answer 14

Wind energy

Question 15

a form of energy that harnesses the power of water in motion—such as water flowing over a waterfall—to generate electricity

Answer 15

Hydroelectric energy

Question 16

Energy from plants and animals

Answer 16

Biomass

Question 17

a mixture of gasoline and ethyl alcohol used as fuel in internal combustion engines.

Answer 17

gasohol

Question 18

heat within the earth

Answer 18

Geothermal enegy

Question 19

Propane is a three-carbon alkane with the molecular formula C₃H₈. It is a gas at standard temperature and pressure, but compressible to a transportable liquid.

Answer 19

propane

Question 20

a form of power produced by the natural rise and fall of tides caused by the gravitational interaction between Earth, the sun, and the moon.

Answer 20

Tidal energy

Question 21

a form of renewable energy that can be utilized from the motion of the waves

Answer 21

wave energy

Question 22

air pollution that reduces visibility

Answer 22

smog