RENEWABLE ENERGY RESOURCES

1. What type of energy is converted to electrical energy in hydro power plants?

Which one of the following is a disadvantage of solar energy?

• It requires low maintenance.

• It requires less space.

• The energy cannot be stored in a battery.

• The initial costs are high.

How are biofuels different from fossil fuels?

State one problem associated with the construction of big dams.

The chief constituent of biogas is

Name two raw materials (feedstock) used to make biofuels.

The element used to make solar cells is

Identify the device shown in the picture.

Wind energy turns a -----------, which feeds an electric generator and produces electricity.

A solar cell is also called a -------------- cell