A major source of anthropogenic greenhouse gases results from:
A) the release of gases from volcanic and geothermal processes.
B) the combustion products of petroleum, coal and natural gas.
C) the production of byproducts from photosynthesis.
D) the transfer of gases from the ocean into the atmosphere.

Question

Quizplus · Accepted Answer

The combustion of fossil fuels such as petroleum, coal and natural gas releases carbon dioxide, methane and other greenhouse gases into the atmosphere, increasing the overall concentration of these gases and contributing to global warming.

A Major Source of Anthropogenic Greenhouse Gases Results From