FORESTRY
ECOLOGY AND ENVIRONMENT
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
carbon dioxide
|
|
|
water vapor
|
|
|
nitrogen
|
|
|
oxygen
|
Detailed explanation-1: -Carbon dioxide is added to the atmosphere by human activities. When hydrocarbon fuels (i.e. wood, coal, natural gas, gasoline, and oil) are burned, carbon dioxide is released. During combustion or burning, carbon from fossil fuels combine with oxygen in the air to form carbon dioxide and water vapor.
Detailed explanation-2: -Global carbon emissions from fossil fuels have significantly increased since 1900. Since 1970, CO2 emissions have increased by about 90%, with emissions from fossil fuel combustion and industrial processes contributing about 78% of the total greenhouse gas emissions increase from 1970 to 2011.
Detailed explanation-3: -The burning of fossil fuels is called combustion. Fossil fuel combustion releases carbon dioxide into the atmosphere.