Tag: commercial applications

Questions Related to commercial applications

Which of the following is a renewable?

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

  1. Wood

  2. Organic remains

  3. Biogas

  4. All of the above

Show answer
Correct Option: D
Explanation:
A. Wood is basically secondary xylem formed from secondary growth in the stems of plants. 
B. Organic remains are the mineralized remains of plants and animals.
C. Biogas is produced from the breakdown of organic matter in the absence of oxygen, by the action of microorganisms.
Renewable sources are the ones that can be replenished naturally over a period of time. Wood, organic remains and biogas are replenished naturally. Hence, all these are renewable.
So, the correct answer is 'All of the above'.

Which of the following is a renewable resource?

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

  1. Fossil fuel

  2. Metals

  3. Sunlight

  4. Both A and B

Show answer
Correct Option: C
Explanation:

Renewable source of energy can be replenished in a very short period of time, sunlight is the constant and inexhaustible source of energy.

So, the correct answer is 'Sunlight'

An inexhaustible resource is

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

  1. Wind power

  2. Soil fertility

  3. Wildlife

  4. All the above

Show answer
Correct Option: A
Explanation:

Since wind energy is a renewable source of energy it is a never ending source thus it is an inexhaustible source.

So, the correct answer is 'Wind power'

A non-renewable and non-inexhaustible resource is

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

  1. Forest

  2. Coal/Petroleum

  3. Water

  4. Wildlife

Show answer
Correct Option: B
Explanation:

Coal/petroleum come under the category of non-renewable resource, once finished it cannot be replenished in a short period of time.

So, the correct answer is 'Coal/Petroleum'

Which one of the following is 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. Metals

  3. Fossil fuel

  4. All the above

Show answer
Correct Option: A
Explanation:

Metals & fossil fuels are non- renewable sources because they cannot be replenished in a shorter period of time, while water is a renewable resource.

So, the correct answer is 'Water'

Which one of the following is an non-conventional source of energy?

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

  1. Hydroelectric energy

  2. Biomass energy

  3. Solar pond

  4. Fossil fuel energy

Show answer
Correct Option: C
Explanation:
  • Solar pond is a non-conventional source of energy, which is renewable or inexhaustible and do not cause environment pollution. More over they do not require heavy expenditure. Energy generated by using wind, tides, solar geothermal heat are also non-conventional energy sources.
  • Hydroelectric energy, biomass energy and fossil fuel energy are conventional sources of energy, since they are non-renewable or exhaustible and cause environmental pollution. 
  • So the correct answer is 'Solar pond'.

Which one 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. Hydropower

  2. Tidal power

  3. Geothermal power

  4. Nuclear energy

Show answer
Correct Option: D
Explanation:

Non-renewable energy resource is a resource that is limited in quantity. It cannot be recycled or replenished. The examples include coal, petroleum, natural gas, nuclear energy. The renewable energy resources include hydropower (wind), tidal power (water), geothermal power (solar energy).

Thus, the correct answer is 'Nuclear energy.'

Which of the following is not a renewable source of energy?

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

  1. Coal

  2. Wood

  3. Cow dung

  4. Agriculture waste

Show answer
Correct Option: A
Explanation:
Non-renewable energy sources are those that cannot be reused again as their actual form gets converted to a waste product or some other non-usable form. Coal is obtained from the Earth's crust by the decomposition of dead matter for long period of time. It is commonly used as the source of energy. There are limited deposits of coal and it takes a long time to be formed. Hence it is a non-renewable form of energy.  Thus the correct answer is option D.

Hydropower is

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

  1. Inexhaustible and renewable resource

  2. Inexhaustible and nonrenewable resource

  3. Exhaustible and nonrenewable resource

  4. Exhaustible and renewable resource

Show answer
Correct Option: A
Explanation:

Hydropower is a method of generating power by flowing water, which spins the turbines, it is a renewable source of energy and also it is inexhaustible

So, the correct answer is 'Inexhaustible and renewable resource'

Coal and petroleum are non-renewable inexhaustible resource.

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

  1. True

  2. False

  3. Nither

  4. Either

Show answer
Correct Option: B
Explanation:

Coal and petroleum are non-renewable exhaustible natural resources as once used they are lost forever. They are not replenished by nature and their formation takes a very long period of time. 

On the other hand, inexhaustible resources are renewable resources that get replenished by nature and hence, they don't get depleted when used. For example, forests, water etc.
Hence the statement given in the question is not correct.
So, the correct answer is 'False'.