Q.

What is formed when coal is burnt?

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a

Carbon monoxide is formed

b

Hydrogen gas is formed

c

Sulphur dioxide is formed

d

Carbon dioxide is formed

answer is A.

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Detailed Solution

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when coal is burned, they release large amounts of carbon dioxide, a greenhouse gas, into the air. Greenhouse gases release heat into our atmosphere, causing global warming. Therefore Option 1 is when coal is in the air they release carbon dioxide.

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