Burning of fossil fuels releases large amounts of carbon dioxide (CO₂) into the atmosphere. Approximately what proportion of this CO₂ remains in the atmosphere, contributing to the trapping of heat close to the Earth's surface?
A) less than 1%
B) 5%
C) 50%
D) 90%

Question

Quizplus · Accepted Answer

Approximately 50% of the CO₂ released from burning fossil fuels remains in the atmosphere, contributing to the greenhouse effect and global warming. The rest is absorbed by oceans and terrestrial ecosystems.

Burning of Fossil Fuels Releases Large Amounts of Carbon Dioxide