Geography Question Answers Chapter 9 Energy Resources Class 6 Maharashtra Board

Questions Answers For All Chapters – Geography Class 6

Exercises-Solutions

(A) What resource will have to be used for the following work?

1. Rohan wants to fly a kite.

– Wind energy

2. People in an Adivasi hamlet have to be protected from the cold.

– Wood or coal

3. Cooking on a picnic.

– Firewood, gas, or solar energy

4. Salma wants to iron her clothes.

– Electricity

5. Starting a railway engine.

– Coal, diesel, or electricity

6. Heating water for a bath.

– Firewood, gas, electricity, or solar energy

7. After sunset, making light available inside the house.

– Electricity, solar energy, or oil lamps

(B) Answer the following questions.

1. Which energy resource does man use the most? Why?

• Man uses mineral oil the most because it is needed for vehicles, machines, industries, and daily activities.

2. Why are energy resources needed?

• Energy resources are needed to run machines, cook food, light homes, transport goods, and perform many activities in daily life.

3. Why do we need to use environment-friendly energy resources?

• We need to use environment-friendly resources because they do not pollute the air, water, or land and are available for a long time without harming nature.

(C) Explain the differences using the given points.

1. Mineral oil and solar energy:

• Availability: Mineral oil is limited, while solar energy is unlimited.
• Environment-friendliness: Mineral oil causes pollution; solar energy is clean.
• Advantages: Mineral oil gives quick energy; solar energy is renewable and free.
• Drawbacks: Mineral oil is expensive and causes pollution; solar energy depends on sunlight and needs costly technology.

2. Hydel power and power from the geo-thermal source:

• Availability: Hydel power is available near rivers; geo-thermal energy is available near hot water springs.
• Environment-friendliness: Both are clean and do not cause pollution.
• Advantages: Hydel power is easy to generate; geo-thermal energy is constant and does not depend on weather.
• Drawbacks: Hydel power needs dams, which can harm the environment; geo-thermal energy is not available everywhere.