2.

1. Some forms of fuel can be used in cooking such as............. ,................ and .............

2. Turning off lights that we do not need, is a way to conserve electricity.

Choose the correct answer :       1. Coal is formed under the Earth's surface from the remains of   ............                                a. dead animals.      c. dead humans. b. dead plants. d. dead insects.

4. As the speed of the car increases, the amount of used fuel decreases.

What happens if ... ? We use renewable resources of energy instead of fossil fuel. (according to Earth's temperature)

2. Wood is a form of( fossil fuel,) that can be used in houses

3. Hydroelectrical energy, is used to produce (water) from waterfalls and dams.

3. We can make liquid biofuel from wood chips and grass.

3.

what is the emoje ?

Put (✓) or (x) : 1. Wind energy will run out faster than natural gas.