Environmental Science MCQs

✅ The correct answer is option A.
Heat is energy in the process of being transferred from one object to another because of the temperature difference between them. After heat is transferred it is stored as “internal energy” which is the total energy stored in the molecules.

✅ The correct answer is option A.
River segments is the largest in terms of scale.

✅ The correct answer is option E.
Evaporation is the process by which water changes from a liquid to a gas or vapour. Evaporation is the primary pathway that water moves from the liquid state back into the water cycle as atmospheric water vapour.

✅ The correct answer is option C.
Nuclear power was developed after World War II.

✅ The correct answer is option C.
Hence, the smog that occurs due to low temperature i.e. in cold climate, and has reducing environment is classical smog or London smog. So, the correct answer is ‘London smog

✅ The correct answer is option C.
The scientific study of trees is called dendrology.

✅ The correct answer is option A.
The best way to check soil erosion is by providing adequate trees and grass cover.

✅ The correct answer is option B.
Our atmosphere is a mixture of gases that surround Earth. It is kept in place by the pull of Earth’s gravity. If Earth was a much smaller planet, like Mercury or Pluto, its gravity would be to weak to hold a large atmosphere.

✅ The correct answer is option D.
Phosphorus cycle is a sedimentary biogeochemical cycle. It describes the lithosphere, hydrosphere and biosphere and the main reservoir pool is lithosphere.

✅ The correct answer is option D.
N2 is present at a very high concentration in our environment.