G4 3.32

The solar energy is converted into .......... energy in greenhouses.

• Electrical
• Sound
• Thermal
• Potential

Greenhouses allow farmers to plant crops that only grow in ..........

• Polar climate
• Warm climate
• Absence of sunlight
• Absence of water

Using convergent .......... in cooking food is one of the benefits of using solar energy.

• Paper
• Plastic
• Mirrors
• Wood

Kinetic energy of .......... movement is used to rotate the blades of wind turbines.

• The moon
• Stars
• Water
• Wind

When the blades of wind turbines rotate, this causes their turbines to rotate, leading to generating .......... energy.

• Electrical
• Solar
• Chemical
• Potential

In wind turbines, the kinetic energy is converted into chemical energy.

• TRUE
• FALSE

Both waterfalls and .......... are renewable energy resources.

• Wind
• Coal
• Oil
• Fossil fuel

The water behind a dam stores .......... energy.

• Kinetic
• Thermal
• Potential
• Electrical

Both water and wind use .......... energy to operate turbines.

• Kinetic
• Thermal
• Electrical
• Solar

The form of energy resulting from waterfalls is called .......... energy.

• Thermal
• Chemical
• Solar
• Hydroelectric