Question

"Greenhouse effect” with respect to global warming refers to-

• A. Cooling & moist condition
• B. Warming effect
• C. Increased rainfall & greenery
• D. Desertification

Answer 1

The correct option is B

Warming effect

If it were not for greenhouse gases trapping heat in the atmosphere, the Earth would be a very cold place. Greenhouse gases keep the Earth warm through a process called the greenhouse effect. Since the industrial revolution got into full swing in the 19th century we have been burning ever increasing amounts of fossil fuels (coal, oil, gasoline, natural gas) in electric generating plants, manufacturing plants, trains, automobiles, airplanes, etc. Burning releases CO₂ into the atmosphere (much the same as respiration does). The increased concentration of CO₂ leads to the temperature rise.