Question

29. Which is NOT a source of environment-friendly energy?
a) Ebb and tide
b) Flow of air
c) Coal
d) Sun.
.
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Answer 1

Answer:

coal cause pollution on burning and hence is not a environment friendly energy.

Answer 2

c) Coal is NOT a source of environment-friendly energy.

Explanation:

• Burning coal releases  greenhouse gases such as carbon dioxide (CO2) and nitrous oxide (N2O).Burning fossil fuels releases greenhouse gases into the atmosphere, increases CO2 and other gas levels, and traps heat,  contributing to global climate change

• Air pollution from coal-fired power plants has been linked to asthma, cancer, heart and lung disease, nervous system problems, acid rain, global warming and other serious environmental and  health consequences. Air pollution and global warming are the two biggest drawbacks of coal, the negative impact of coal  on the environment.
• In addition to carbon monoxide and heavy metals such as mercury, the use of coal produces sulfur dioxide, a hazardous substance associated with acid rain.