Question

Why do we say that 'burning of fuels' can cause 'health hazards? ​

Answer 1

Answer:

For example, carbon fuels like coal, petroleum etc when burnt produces unburnt carbon particles in the environment. ... These fuels also produce carbon monoxide which is a very harmful gas if consumed for prolong hours it can even lead to death. Thus, we can conclude that burning of fuels causes health hazards.

Explanation:

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Answer 2

Fuels such as coal, petroleum release unburnt particles in the environment. The particles result in air pollution and cause respiratory diseases such as respiratory illness, lung damage, ozone (smog) effect, reduces the ability of blood to bring oxygen to the blood cells and tissues, liver and kidney etc.