The greenhouse effect is caused by the higher level of which gas in the atmosphere ? A. Carbon monoxide B. Carbon dioxide C. Nitrous oxide D. Sulphur dioxide

The correct answer is: B. Carbon dioxide

Carbon dioxide is a greenhouse gas that traps heat in the atmosphere, causing the planet to warm. The main source of human-caused carbon dioxide emissions is from burning fossil fuels for electricity, heat, and transportation. Other sources include deforestation, agriculture, and industrial processes.

Carbon monoxide is a poisonous gas that is not a greenhouse gas. It is produced when fossil fuels are burned incompletely. Nitrous oxide is a greenhouse gas that is produced by agriculture, fossil fuel combustion, and industrial processes. Sulphur dioxide is a greenhouse gas that is produced by burning fossil fuels.

The greenhouse effect is a natural process that helps to keep the Earth’s climate stable. However, human activities are increasing the levels of greenhouse