In an inconvenient truth, the main greenhouse gas is
A carbon dioxide
B. Nitrous oxide
C. Oxygen
D. methane
A. Carbon dioxide
The correct answer is A. Carbon dioxide. In the documentary "An Inconvenient Truth," carbon dioxide is identified as the main greenhouse gas responsible for climate change. The film highlights the increase in carbon dioxide emissions due to human activities, such as burning fossil fuels.
To determine the main greenhouse gas in the documentary "An Inconvenient Truth," we can start by understanding the concept of greenhouse gases. Greenhouse gases are atmospheric gases that contribute to the greenhouse effect, which is the trapping of heat in the Earth's atmosphere.
In "An Inconvenient Truth," the primary focus is on the greenhouse gas responsible for climate change. The main greenhouse gas emphasized in the documentary is carbon dioxide (CO2). Carbon dioxide is released through various human activities, such as burning fossil fuels (coal, oil, and natural gas), deforestation, and industrial processes.
Therefore, the correct answer to your question is A. Carbon dioxide.