Name a few alternative sources of energy. [2 MARKS]
Each point: 0.5 Mark 1. Solar energy 2. Hydropower 3. Wind energy 4. Geothermal energy
Mention 5 alternative energy sources to replace petroleum and coal? [5 MARKS]
Which process is the source of energy of the stars? Name three common power plants. [2 MARKS]
Name four sources of water. [2 MARKS]