Question

Too much absorption of infrared rays by water vapour and carbon dioxide may lead to:

• A. Increased solar energy
• B. Increased sea level
• C. Decreased soil erosion
• D. Cooling effect in atmosphere

Answer 1

The correct option is B Increased sea level

Greenhouse gases like carbon dioxide, methane and oxides of nitrogen along with water vapour are responsible for the absorption of infrared rays from the sun to maintain the atmospheric temperature. Too much absorption of heat by greenhouse gases cause global warming, which is the gradual elevation the atmospheric temperature leading to extreme climatic changes.

This overall temperature rise can cause:

• Melting of polar ice caps resulting in the increased sea level
• Unfertile crop lands
• Soil erosion
• Extreme climatic conditions