Which of the following activities have contributed the greatest amount of carbon dioxide into the atmosphere over the past 100 years?
A)increased farming and production of grains
B)increased reliance upon coal,oil,and natural gas
C)deforestation of rain forests and other parts of the world
D)volcanic eruptions and widespread forest fires

Question

Quizplus · Accepted Answer

Increased reliance on coal, oil, and natural gas has been the largest contributor to carbon dioxide emissions due to the burning of fossil fuels.

Which of the Following Activities Have Contributed the Greatest Amount