Question

Consider the following statements concerning environmental pollution:

1. Nuclear explosions cause radioactive radiation

2. Earthquakes do not cause Tsunamis

3. Acid rain is not a major environmental issue

4. Air pollution has some impact on meteorology

Which of the above statements are correct?

1. 1 and 2
2. 2 and 3
3. 3 and 4
4. 1 and 4

Answer 1

Correct Answer - Option 4 : 1 and 4

Radioactive radiation:

Radiation is the energy or particles that are released during radioactive decay. The radioactivity of a material refers to the rate at which it emits radiation. Nuclear explosions cause radioactive radiation.

The three most common types of radiation are alpha particles, beta particles, and gamma rays.

Tsunami:

A tsunami is an ocean wave or series of waves caused by a sudden disturbance of the ocean floor that displaces a large amount of water.

Tsunamis are caused generally by earthquakes, less commonly by submarine landslides, infrequently by submarine volcanic eruptions and very rarely by large meteorite impacts in the ocean.

Note: All earthquakes do not cause tsunamis.

Acid rain:

• When the quantity of acids in the raining water is more than the average, then such rain is called 'Acid rain'. It is a a major environmental issue.
• It refers to the ways in which acid from the atmosphere is deposited on the earth’s surface.
• Oxides of nitrogen and sulphur which are acidic in nature can be blown by the wind along with solid particles in the atmosphere and finally settle down either on the ground as dry deposition or in water, fog, and snow as wet deposition.

 

Meteorology:

• It is the scientific study of the atmosphere that focuses on weather processes and forecasting.
• Air movements influence the fate of air pollutants. So, any study of air pollution should include a study of the local weather patterns (meteorology).
• If the air is calm and pollutants cannot disperse, then the concentration of these pollutants will build up.