3.1h) Make a list of any three sources of heat and light each.

 

✍👉Sources of Heat:

1. Sun – Provides natural heat to the Earth.
2. Fire – A combustion process that generates heat.
3. Electric Heaters – Devices that convert electrical energy into heat.

Sources of Light:

1. Sun – The primary natural source of light.
2. Electric Bulbs – Artificial light sources that use electricity to produce light.
3. Candles – Produce light through the burning of wax.