Greenhouse Gases and Atmosphere

Carbon dioxide is the primary greenhouse gas responsible for trapping heat in Earth's atmosphere through the greenhouse effect. It is produced by burning fossil fuels, deforestation, and various industrial processes. Oxygen, hydrogen, and nitrogen are not greenhouse gases as they do not absorb infrared radiation effectively.

It is a life-supporting component of the air.

Carbon dioxide is responsible for about 75% of all greenhouse gas emissions from human activities, making it the primary contributor to the greenhouse effect. While methane is more potent per molecule, its concentration is much lower. Nitrogen and oxygen are not greenhouse gases.

Biogas comprises primarily methane (CH₄) and carbon dioxide (CO₂) and may have small amounts of hydrogen sulphide (H₂S), moisture and siloxanes. The major component out of all of them is methane.

The greenhouse effect is primarily caused by excess carbon dioxide (CO2) in the atmosphere, which traps heat. Carbon monoxide is toxic but not a greenhouse gas, carbon tetrachloride is a solvent, and sulphuric dioxide contributes to acid rain but is not the primary greenhouse gas.

O₂ is not a green house gas.

CO₂ is associated with global warming.

The burning of fossil fuels results in the emission of carbon dioxide, which is a greenhouse gas.

Nitrogen is 78% and oxygen is 21% (apprx).

Biogas is a renewable energy source produced when organic matter breaks down in the absence of oxygen. It is composed primarily of methane (around 50-70%), along with carbon dioxide and small amounts of other gases. Methane is the combustible component.

Methane is the main constituent of natural gas. 

Hydrogen gas is not responsible for heating earth's surface and atmosphere.

The major atmospheric constituents, nitrogen, oxygen, and argon are not greenhouse gases.

Nitrogen makes up about 78% of Earth's atmosphere by volume, making it the major constituent. Oxygen is second at about 21%, while carbon dioxide is only about 0.04%. Hydrogen exists in trace amounts only.

Bacteria are major producers of greenhouse gases. Denitrifying bacteria produce nitrous oxide (N2O) as a byproduct, while methanogenic archaea (often grouped with bacteria in general contexts) produce methane (CH4) in anaerobic environments like wetlands and rice paddies. Earthworms improve soil but don't directly produce these gases.