The observed increase in greenhouse gases in the atmosphere is attributable to ________.
A) human activities
B) earthquakes
C) volcanoes
D) the end of the "Ice Age"
E) grass fires set by lightning

Question

Quizplus · Accepted Answer

The overwhelming scientific consensus is that the observed increase in greenhouse gases, including carbon dioxide, methane, and nitrous oxide, is primarily due to human activities such as burning fossil fuels and deforestation.

The Observed Increase in Greenhouse Gases in the Atmosphere Is