Which cycle has been significantly altered by humans and is of great concern because of its implications for global warming?
A) argon
B) oxygen
C) nutrient
D) nitrogen
E) carbon

Question

Quizplus · Accepted Answer

The carbon cycle has been significantly altered by human activities such as burning fossil fuels and deforestation, which releases large amounts of carbon dioxide into the atmosphere. This increase in greenhouse gases is a major contributor to global warming and climate change.

Which Cycle Has Been Significantly Altered by Humans and Is