Tag: protecting our environment

Questions Related to protecting our environment

Which of the following is / are fossil fuels ?

commercial applications water and air and their importance natural resources and their types promotion of renewable resources protecting our environment

  1. Coal

  2. Petroleum

  3. Natural gas

  4. All of these

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Correct Option: D
Explanation:

They all are fuels because they release heat energy when they are burned. They are fossil fuels because  they were formed from the remains of living organisms millions of years ago.

From the following, which is the best source of renewable energy?

commercial applications water and air and their importance natural resources and their types promotion of renewable resources protecting our environment

  1. Petroleum

  2. Coal

  3. Forests

  4. Cattle

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Correct Option: C
Explanation:
Renewable energy is generally defined as energy that comes from resources which are naturally renewed. The forest is the best source of renewable energy as the trees collect solar energy on a daily basis and convert this energy into their mass through photosynthesis. Such forest can be replenished by planting new trees.
So, the correct answer is 'Forests'

Which of the following is an exhaustible natural resource ?

commercial applications water and air and their importance natural resources and their types promotion of renewable resources protecting our environment

  1. Air

  2. Water

  3. Soil

  4. Forest

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Correct Option: D
Explanation:

Resources which get exhausted and are not available in nature in plenty and are known as exhaustible natural resources. They take longer to get replenished. For example coal, petroleum, forest, minerals, etc.

Minerals and metals are

commercial applications water and air and their importance natural resources and their types promotion of renewable resources protecting our environment

  1. Biodegradable resources

  2. Renewable

  3. Non-renewable

  4. Inexhaustible

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Correct Option: C
Explanation:

The resources which cannot be replenished again after consumption of resources are known as non-renewable resources. The minerals and metals are obtained from the ores through the process of mining. There are limited reserves of the ores in the Earth's crust.

Thus, the correct answer is option C. 

Best source of renewable energy is

commercial applications water and air and their importance natural resources and their types promotion of renewable resources protecting our environment

  1. Cattle

  2. Petroleum

  3. Coal

  4. Trees

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Correct Option: D
Explanation:

The resources which can be replenished again after their consumption are referred as the renewable sources of energy. The forests can be replenished again through the process of afforestation. In this method, new trees are planted to cover the area under forests. 

Thus, the correct answer is option D. 

Select the non renewable resources from the following

commercial applications water and air and their importance natural resources and their types promotion of renewable resources protecting our environment

  1. Forest

  2. Soil

  3. Water

  4. Fossil fuels

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Correct Option: D
Explanation:

Forests, soil and water are renewable resources because they are replaced naturally and hence can be repeatedly used.

Fossil fuels are obtained by the action of the environment on the dead plants and animals for hundreds of years. They are non renewable because they cannot be reused again as their actual form gets converted to a waste product or some other non-usable form.
Thus the correct answer is option D.

Which of the following is a non-renewable energy resource?

commercial applications water and air and their importance natural resources and their types promotion of renewable resources protecting our environment

  1. Solar

  2. Methane

  3. Hydroelectric

  4. Coal

Show answer
Correct Option: D
Explanation:

An energy source that will run out in future is known as a non-renewable energy resource. Thus coal is a non-renewable energy resource.

Sunlight is ________ natural resource.

commercial applications water and air and their importance natural resources and their types promotion of renewable resources protecting our environment

  1. Inexhaustible

  2. Exhaustible

  3. Both A & B

  4. None of these

Show answer
Correct Option: A
Explanation:

Inexhaustible resource is a natural resource that will never run out so if we take advantage of the greatest  natural resources will not be depleted and will continue to exist, such as water, sunlight, tidal energy, ocean energy and wind energy.

Which alternative energy source has the least long-term impact on the environment?
I.    Solar power
II.  Wind power
III. Nuclear power

commercial applications water and air and their importance natural resources and their types promotion of renewable resources protecting our environment

  1. I only

  2. II only

  3. III only

  4. I and II only

  5. II and III only

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Correct Option: D
Explanation:
I.   Solar power is the energy generated from solar light i.e. the sunlight.
II.  Wind power is the energy generated by the wind.
III. Nuclear power is the energy generated through nuclear reactions.
Since solar light and wind has no danger and has least impact, so solar power and wind power have the least long-term impact on the environment.
So, the correct answer is 'I and II only'

It's a non-renewable resource.

commercial applications water and air and their importance natural resources and their types promotion of renewable resources protecting our environment

  1. Water

  2. Solar energy

  3. Coal

  4. Soil

Show answer
Correct Option: C
Explanation:
  • There are different types of resources. 
  • The non-renewable forms of resources cannot be replenished again when the source gets exhausted. 
  • The coal is an example of a non-renewable source of energy. 
  • Soil, water, and solar energy are examples of the renewable sources of energy.
  • Thus, the correct answer is option C.