TGTET Paper 1 Exam 23 Jul 2017 Paper

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TGTET Paper 1 Exam 23 Jul 2017 Paper

Question : 128 of 150

Marks: +1, -0

These energies never get exhausted.

Wind, sunlight
Kerosene, wind, water
Coal, sunlight, wind
Natural gas, water

Solution:

Concept:

Renewable and Non-renewable Resources.

Explanation:

Renewable resources are those that are naturally replenished on a human timescale, such as sunlight, wind, and water. Non-renewable resources, like coal, kerosene, and natural gas, are finite and will eventually be depleted.

Coal - Exhaustible

Kerosene - Exhaustible

Natural Gas - Exhaustible

Sunlight - Inexhaustible

Wind - Inexhaustible

Water - Inexhaustible

Sources of Energy	Description
Wind	Air moving at a high velocity. The wind is generated due to the differences in atmospheric pressure and this process goes on continuously. It's supply is never-ending.
Sunlight	The sunlight i.e. Solar Energy derived from the sun is the primary and never-ending source of Energy.
Water	Water in the environment is recharged continuously through rainfall with the help of water cycles. It is inexhaustible.
Coal	It is a fossil fuel. Dead plants buried under the rocks or soil, under the action of extreme heat and pressure get converted into Coal. It takes millions of years for the formation of coal. It will get exhausted after a period of time.
Kerosene	It is a fuel obtained from crude oil after various extraction and purification process. As the reserves of the crude oil are limited, the supply of kerosene is limited and it will be exhausted in future.
Natural Gas	It is a fuel found with petroleum deposits which is released when crude oil is brought to the surface. Mainly extracted from the earth's reserves and takes millions of years to form so not easily renewed and will get exhausted.

Therefore, wind and sunlight are energies that never get exhausted.

Answer:

A. Wind, sunlight

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