EVERYDAY SCIENCE

SCIENCE

ENVIRONMENTAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
About ____ of carbon dioxide come from burning of fossil fuel (coal,gas,petroleum).
A
40%
B
60%
C
80%
D
75%
Explanation: 

Detailed explanation-1: -The large-scale burning of fossil fuels causes serious environmental damage. Over 80% of the carbon dioxide (CO2) generated by human activity comes from burning them: around 35 billion tonnes a year, compared to 4 billion from land development.

Detailed explanation-2: -Carbon dioxide Fossil fuel combustion (burning) for energy accounted for 73% of total U.S. GHG emissions and for 92% of total U.S. anthropogenic CO2 emissions.

Detailed explanation-3: -Coal is not 100 percent carbon: burning a pound of coal emits 2.07 pounds of CO2.

Detailed explanation-4: -When fossil fuels are burned, they release large amounts of carbon dioxide, a greenhouse gas, into the air. Greenhouse gases trap heat in our atmosphere, causing global warming.

Detailed explanation-5: -Burning 1 kg of bituminous coal will produce 2.42 kg of carbon dioxide.

There is 1 question to complete.