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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

What Are Renewable Energy Resources?

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प्रश्न

What are renewable energy resources?

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उत्तर

Renewable energy resources are those that come from natural sources and are naturally replenished. These include solar energy (sunlight), wind energy from windmill (wind), hydroelectricity (rain), tidal energy from waves (tides), and geothermal energy (energy from the heat of the earth).

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पाठ 11: Renewable and Non-renewable resources - Answer the questions brief

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ऑक्सफोर्ड युनिव्हर्सिटी प्रेस Voyage Geography [English] Class 7
पाठ 11 Renewable and Non-renewable resources
Answer the questions brief | Q 1

संबंधित प्रश्‍न

Give the names of two energy sources that you would consider to be exhaustible. Give reasons for your choices.


Why are fossil fuels classified as non-renewable source of energy? 


Why is LPG considered a good fuel? 


Which fossil fuel formed by the buried remains of large land plants? 


The product of petroleum used to drive heavy vehicles like trucks is:

(a) petrol
(b) kerosene
(c) diesel
(d) carbon oxide


The ultimate source of energy stored in fossil fuels is:

(a) moon
(b) earth
(c) sun
(d) sea


Fossil fuels are energy rich compounds of an element X which were originally made by the plants with help of sun's energy. 

Name another element which is usually found in combination with X in fossil fuels.


Name the clean fuel which can be obtained from cow-dung. 


Name the biomass which is still widely used as a source of heat energy in many household of our country.


Which of the following is not an example of a biomass energy source?

(a) wood
(b) biogas
(c) atomic energy
(d) cow-dung


A certain form of energy is available due to the difference in the temperature of water at the surface of the ocean and its deeper levels.

(a) Name the form of energy.
(b) Is this energy ultimately derived from the sun or not?
(c) Explain how this form of energy can be converted into electricity.
(d) What is the minimum temperature difference in water at the surface of ocean and its deeper level which is required to operate power plants based on is energy?


Which of the following is ultimately not derived from the sun's energy (or solar energy)?

(a) wind energy
(b) nuclear energy
(c) biomass energy
(d) ocean thermal energy


Can you tell?

What are the non-conventional energy resources?


Can you tell? 

Which forms of energy from the sun are used in solar energy devices?


Why are fossil fuels called non-renewable sources of energy?


Choose the odd one:


Which among the following is the non-renewable resources?


Which of the following is a pair of exhaustible natural resources?


Write True/False against the following statement.

Oxygen in air is an exhaustible natural resource.


Write True/False against the following statement.

Wildlife is an exhaustible natural resource.


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