Environmental Science MCQs

✅ The correct answer is option A.
If the air temperature remains constant, evaporating water into the air will increase the dew point and increase the relative humidity.

✅ The correct answer is option C.
The park holds the maximum viable population of the endangered Nilgiri Tahr including other little known fauna Nilgiri marten, ruddy mongoose, small clawed otter, dusky striped squirrel etc.

✅ The correct answer is option A.
The air’s capacity for water vapour increases as air temperature increases. Air with a temperature of 30°C can hold more than three times as much water vapour as air at 10°C. Relative humidity varies significantly when the temperature changes, even when the actual amount of water vapour in the air remains the same.

✅ The correct answer is option A.
The phenomenon of occurrence of additional species found in the ecotone or transitional zone between adjoining ecosystems is known as edge effect.

✅ The correct answer is option A.
Man and the Biosphere Programme (MAB) is an intergovernmental scientific programme, launched in 1971 by UNESCO, that aims to establish a scientific basis for the improvement of relationships between people and their environments.

✅ The correct answer is option B.
A direct food relation between two species of animals in which one animals kills and feed on another is referred as predation and a relationship between two species of organism where both the partners are benefitted from each other is called symbiosis are true.

✅ The correct answer is option A.
Hotter summers and colder winters than at present

✅ The correct answer is option D.
NGO is an abbreviation for non-governmental organization.

✅ The correct answer is option D.
The ecological niche of an organism represents the position and the role played by the organism in the ecosystem in which it lives. Here, D is the correct answer.

✅ The correct answer is option A.
The presence in or introduction into the air of a substance which has harmful or poisonous effects is called air pollution.