Tag: reason for finishing of materials (resources)

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Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

If materials (resources) are finished, then people will struggle for ________ for energy.

  1. coal

  2. petroleulm

  3. both a and b

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Coal, petroleum, and natural gas are considered nonrenewable because they can not be replenished in a short period of time. 

These are called fossil fuels.

A non-renewable resource (also called a finite resource) is a resource that does not renew itself at a sufficient rate for sustainable economic extraction in meaningful human time-frames.

Hence the option C is correct.
Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

Which of the following is a false statement?

  1. To overcome the energy crisis the use of solar cooker must be increased.

  2. To overcome the energy crisis more amount of non-renewable sources of energy must be used.

  3. The re-usage of waste material as a source of energy can be done to overcome the energy crisis.

  4. To overcome the energy crisis water has to be saved.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

To overcome the energy crises more amount of renewable sources of energy must be used because renewable sources of energy can be used again and again and solar energy is a renewable source of energy.


So, option B is not correct. 

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources)

Which of the following is a fossil fuel?
I Tar
II Coal
III Petroleum

  1. I only

  2. I and II only

  3. II and III only

  4. I, II and III
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Coal and petroleum are fossil fuels. Tar is not a fossil fuel. 

A fossil fuel is obtained from the remains of organisms. It is a natural fuel.
Tar is a black mixture of hydrocarbons and free carbon. It is obtained from several organic compounds during destructive distillation. Tar can also be produced from wood, coal, petroleum or peat.

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources)

Fossils are mostly present in which of the following rocks?

  1. Igneous rocks

  2. Sedimentary rocks

  3. Metamorphic rocks

  4. Coarse-grained rocks
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sedimentary rocks are made up of grains of sediment that have been weathered from a pre-existing rock or mineral. The grains can be big or small, they are often rounded, and are cemented together in a matrix. Sedimentary rocks may be layered and may also contain fossils.

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources)

Which of the following is an example of fossil fuel?

  1. Coal gas

  2. Coke

  3. Natural gas

  4. Producer gas
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing energy originating in ancient photosynthesis. 

Natural gas is a mixture of gases which are rich in hydrocarbons. All these gases (methane, nitrogen, carbon dioxide etc) are naturally found in atmosphere. 
Natural gas reserves are deep inside the earth and is a fossil fuel. coal gas, coke and producer gas are the derivatives of coal, not naturally occurring.

Hence, option C is correct.