AP BIOLOGY

Detailed explanation-1: -Carbon dioxide (CO2) is an important heat-trapping gas, or greenhouse gas, that comes from the extraction and burning of fossil fuels (such as coal, oil, and natural gas), from wildfires, and from natural processes like volcanic eruptions.

Detailed explanation-2: -Carbon dioxide is known as a greenhouse gas because it helps to trap heat from the atmosphere. This property of Carbon dioxide helps to maintain a comfortable and warm temperature on earth.

Detailed explanation-3: -Carbon dioxide is called a greenhouse gas because it is one of the gases in the atmosphere that warms the Earth through a phenomenon called the greenhouse effect. Carbon dioxide molecules in the atmosphere absorb long-wavelength infrared energy (heat) from the Earth and then re-radiate it, some of it back downward.

Detailed explanation-4: -Carbon dioxide is one of the greenhouse gases and an increase in the carbon dioxide content in the atmosphere would cause more heat to be retained by the atmosphere and lead to global warming.