Tag: human influences on the environment

Questions Related to human influences on the environment

An increase in albedo would be accompanied by ___________ in radiative equilibrium temperature.

  1. An increase

  2. A decrease

  3. No change

  4. Unstable oscillations


Correct Option: B

Good urban planning is essential for _____________ land use.

  1. Rational

  2. Irrational

  3. Planned

  4. Unplanned


Correct Option: A

______________ ecosystems are maintained artificially by man.

  1. Man-made

  2. Marine

  3. Artificial

  4. Brackish


Correct Option: A

Which is not a component of human socio-cultural environment?

  1. Land

  2. Religion

  3. Community

  4. Caste


Correct Option: A
Explanation:
Land cannot be directly a component of human socio-cultural environment as compared to religion, community and caste which determines  beliefs, social grouping etc. Land also becomes a tangible component as compared to others that are intangible. Land or property provides the economic status, whereas religion, community and caste gives an idea of the social and cultural inclination of the person.
So, the correct answer is 'Land'

Metallic pollutants released by automobiles that use leaded fuel is

  1. Arsenic

  2. Cadmium

  3. Lead

  4. Mercury


Correct Option: C
Explanation:

Leaded fuel in the form of lead gasoline is banned recently due to its extremely harmful effects on health and pollution caused by it. Combustion of leaded petrol leads to release of lead in the environment causing dangerous effects on the health of all living organisms and environmental pollution. 

The main difference between leaded and unleaded petrol is the presence of an additive in leaded petrol called tetra ethyl lead.
So the correct option is C.

What are man-made sources of acid rain?

  1. Exhaust from vehicles

  2. Burning fuels

  3. Isoprene emissions

  4. All of above


Correct Option: A

In humans, nitrates causes blood disease and

  1. Gastric cancer

  2. Bladder infection

  3. Skin infection

  4. Lung disease


Correct Option: A

The largest store of carbon molecules on earth is in

  1. The atmosphere

  2. Fossil fuels

  3. Marine sediments

  4. Living organisms


Correct Option: C
Explanation:

When marine organisms die, their bodies sink into the sediments at the bottom of the ocean. The carbon from their bodies is released which forms marine sediments that arc the largest store of carbon on earth.

An ideal shelter for housing a temperature-measurement instrument should be:

  1. White

  2. Black

  3. In the shade

  4. Both white and in the shade


Correct Option: D