Environmental Science MCQs

✅ The correct answer is option C.
Ozone is not a primary pollutant since it is formed by the photo-chemical reaction of oxygen with the UV rays and not directly discharged into the atmosphere by a source. Similarly, sulphuric acid is also not a primary pollutant.

✅ The correct answer is option A.
A pond, serves as a good example for a fresh water ecosystem.

✅ The correct answer is option A.
Wildlife week is celebrated all over the country in the month of October from 2nd to 8th every year with the view to preserve the fauna, i.e., the animal life of the India.

✅ The correct answer is option C.
The earth’s radiation is often referred to as longwave radiation, while the sun’s radiation is often referred to as shortwave radiation.

✅ The correct answer is option A.
Acid rain contains Sulphuric acid.

✅ The correct answer is option B.
Within the stratosphere temperatures increase with altitude (see temperature inversion); the top of the stratosphere has a temperature of about 270 K (−3°C or 26.6°F).

✅ The correct answer is option A.
Smog is a kind of air pollution, originally named for the mixture of smoke and fog in the air. Classic smog results from large amounts of coal burning in an area and is caused by a mixture of smoke and sulfur dioxide.

✅ The correct answer is option D.
Greenhouse gas, any gas that has the property of absorbing infrared radiation (net heat energy) emitted from Earth’s surface and reradiating it back to Earth’s surface, thus contributing to the greenhouse effect. Carbon dioxide, methane, and water vapour are the most important greenhouse gases.

✅ The correct answer is option D.
The term “blue revolution” refers to the remarkable emergence of aquaculture as an important and highly productive agricultural activity. Aquaculture refers to all forms of active culturing of aquatic animals and plants, occurring in marine, brackish, or fresh waters.

✅ The correct answer is option A.
Good urban planning is essential for rational land use.