Question

Figures show that various energy resources are used for cooking food. List them. Now classify them using the chart we have studied. Discuss whether we can use alternative energy resources for cooking.

Cooking on a Stove	Roasting on a Coal Burner
Cooking on a Kerosene Stove	Removing Baked Items from the Oven
Cooking on a Gas Stove

Answer 1

Energy resources shown in the figures:

1. Firewood is used in a traditional stove or chulha for cooking food.
2. Coal is used in a coal burner for roasting food items.
3. Kerosene is used as fuel in a kerosene stove.
4. LPG or natural gas is used in a gas stove for cooking.
5. Electricity is used in ovens and other electrical cooking appliances.

Classification of these energy resources:

Energy resource	Type	Nature
Firewood	Conventional source	Renewable if forests are properly managed
Coal	Conventional source	Non-renewable
Kerosene	Conventional source	Non-renewable
LPG / Natural gas	Conventional source	Non-renewable
Electricity	Secondary energy resource	May be produced from renewable or non-renewable sources

• Yes, alternative energy resources can be used for cooking. Solar energy can be used through a solar cooker. It does not require fuel and does not produce smoke during use. Biogas can also be used for cooking and is produced from animal dung and organic waste. Electricity generated from solar, wind, and hydel power can also be used in electric cooking appliances.
• Alternative energy resources are useful because they help reduce dependence on coal, petroleum, and natural gas. They generally cause less pollution and can be renewed naturally. Solar energy and biogas are especially useful for cooking in suitable areas.