(i)

How energy in a windmill is obtained

When the wind blows, the windmill turns the propeller-like blades of a turbine around a rotor, which spins a generator, which creates electricity (energy).

(ii)

Sources of renewable energy

1. Sun
2. Wind
3. Water/hydropower
4. Biomass
5. Tides
6. Geothermal source/heat from the ground

i)

Energy is the capacity or ability to do work

ii)

Reasons to conserve energy

1. For future use
2. Create a healthier planet
3. Produce a higher quality of life
4. Reduce the energy bills
5. Helps sustain the resources