Environmental Science - Study Mode

[#721] Nitrogen oxide and hydrocarbons released by automobiles interact to form
Correct Answer

(B) PAN

Explanation

Solution: Peroxyacyl Nitrates being a secondary pollutant is not emitted directly from the automobiles or power plants but is formed from the pollutants emitted from the automobiles and power plants through the chemical reaction.

[#722] The Expansion of SPCA
Correct Answer

(B) Society for the Prevention of Cruelty to Animals

Explanation

Solution: SPCA = Society for Prevention of Cruelty to Animals.

[#723] Deforestation generally decreases
Correct Answer

(D) Rainfall

Explanation

Solution: When forests are destroyed, the atmosphere, water bodies, and the water table are all affected. Trees absorb and retain water in their roots. A large part of the water that circulates in the ecosystem of rainforests remains inside the plants. Some of this moisture is transpired into the atmosphere. When this process is broken, the atmosphere and water bodies begin to dry out. The watershed potential is compromised and less water will run through the rivers. Smaller lakes and streams that take water from these larger water bodies dry up.

[#724] What is Canopy?
Correct Answer

(A) Uppermost level of the forest

Explanation

Solution: The uppermost branches of the trees in a forest, forming a more or less continuous layer of foliage.

[#725] The presence of solid, liquid or gaseous compounds, which may not be normally present, or in excess concentration in the atmosphere is called
Correct Answer

(A) air pollution

Explanation

Solution: The presence in or introduction into the air of a substance which has harmful or poisonous effects is called air pollution.