the emojie

Correct: 1. Fuel is the matter that produces (electrical )energy on burning.

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.

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

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

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

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

what is the emoje ?

3. Using the ...................resources of energy is more expensive than using fossil fuel

Give a reason for the following : Cutting trees to obtain wood has negative effects on the environment.

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

2.