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Question 1

Coal is formed from ancient peat swarm that existed

Answer 1

300 million years ago

Question 2

About what fraction of the world’s electricity is generated by coal?

Answer 2

40%

Question 3

About what fraction of the world’s CO2 emission comes from the burning of coal?

Answer 3

40%

Question 4

Currently what fraction of the electricity in US is generated by coal?

Answer 4

20%

Question 5

Which of following countries has the biggest coal reserve?

Answer 5

USA

Question 6

Roughly how many tion in US?

Answer 6

250 years

Question 7

If all the globally known coal reserve is burned, by roughly how much atmospheric CO2 will increase?

Answer 7

110 ppm

Question 8

Coal-related acid rain and aerosols are formed from which of following pollutants emitted from the coal fires?

Answer 8

SO2

Question 9

In selective catalytic reduction, atmospheric nitrogen in coal-fire exhausts is removed by

Answer 9

catalytic converters.

Question 10

In flue-gas desulfurization, sulfur in coal-fire exhausts is removed by

Answer 10

mixing with calcium oxides.