Question

Assertion (A): Burning of coal or petroleum products leads to air pollution. Reason (B): Coal and petroleum are non renewable sources of energy i) Both A and R are true and R is the correct explanation of the assertion. ii) Both A and R are true but R is not the correct explanation of the assertion. iii) A is true but R is false. iv) A is false but R is true.

Answer 1

Answer:

A) The burning of fossil fuel gives out harmful compounds like sulfur dioxide and nitrogen oxides. These substances will rise terribly high into the atmospher, wherever they combine and react with water, oxygen, and other chemicals to form a lot of acidic pollutants, called air pollution.

B) Non-renewable energy comes from sources that will run out or will not be replenished in our lifetimes—or even in many, many lifetimes. Most non-renewable energy sources are fossil fuels: coal, petroleum, and natural gas. Carbon is the main element in fossil fuels. ... All fossil fuels formed in a similar ways.

so iv) is correct.

A is false but B is true.

Answer 2

The correct answer for the assertion and reasoning is ii). Both Assertion (A) and Reasoning (R) are true, but R is not the correct explanation for A.

Given Assertion and Reasoning are as follows:

(A): Burning of coal or petroleum products leads to air pollution.

(B): Coal and petroleum are non-renewable sources of energy.

• When coal products and petroleum products are burned, they contribute to air pollution. Coal is a type of fossil fuel and upon combustion of coal, it produces high levels of carbon dioxide that contribute to global warming and air pollution.
• Both coal and petroleum are non-renewable forms of energy. Non-renewable energy is a source that has a finite amount of energy. This finite amount of energy will not get replenished once it gets exhausted. Hence, Reasoning is also true.
• But, Reasoning does not justify Assertion. The fact that petroleum and coal are renewable sources of energy, does not justify causing air pollution due to the burning of these substances.

Hence, the correct answer will be ii). Both A and R are true but R is not the correct explanation of the assertion.

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