Previous year MCQs

Environment & Ecology UPPSC 2013 GS-I
Question

Which one of the following is a bio indicator of air pollution?

Answer & Solution

Answer: (Detailed Solution Below)

Option B: Lichen

Detailed Solution:

The correct answer is “Lichen”.
Lichens are excellent bioindicators of air pollution because they don't thrive in polluted environments.

Lichens are miniature ecosystems made up of fungus, algae, and/or cyanobacteria. The algae or cyanobacteria live inside the fungus, providing sugars made from sunlight, while the fungus provides the home.

Similar Questions:

The entire sequence of communities that successively change in a particular area are called:
  1. A) Ecological succession
  2. B) Sere
  3. C) Community dynamics
  4. D) Pyramid of biomass
Which one of the following diseases is not transmitted by tiger mosquitoes?
  1. A) Yellow fever
  2. B) Dengue
  3. C) Chikungunya
  4. D) Japanese Encephalitis
The World Habitat Day is observed on:
  1. A) March 21
  2. B) March 23
  3. C) June 5
  4. D) October 7
What was "Dar-ul-Shafa" established by Feruz Tguhlaq?
  1. A) An alms house
  2. B) A free hospital
  3. C) A library
  4. D) A guest house for pilgrims
Which of the following has the lowest mean net primary productivity?
  1. A) Temperate forests
  2. B) Tropical forests
  3. C) Temperate grasslands
  4. D) Tropical savanna
Endangered species are listed in:
  1. A) Dead Stock Book
  2. B) Red Data Book
  3. C) Live Stock Book
  4. D) None of the above
Refrigeration helps in food preservation by
  1. A) killing of germs (bacteria)
  2. B) reducing the rate of biochemical reaction
  3. C) destroying the enzyme action
  4. D) sealing food with a layer of ice
Which of the following longitudes is know as "standard Meridian" in India?
  1. A) 87 °30’ E
  2. B) 85 °30’ E
  3. C) 84 °30’ E
  4. D) 82 °30’ E
The Government of India enacted the Forest Conservation Act in the year:
  1. A) 1976
  2. B) 1980
  3. C) 1983
  4. D) 1988
Which one of the following is the correct order of biological organization ranging from organism to biosphere?
  1. A) Population > Ecosystem > Community > Landscape
  2. B) Landscape > Community > Ecosystem > Population
  3. C) Population > Community > Ecosystem > Landscape
  4. D) Population > Landscape > Community > Ecosystem
Which of the following rivers is called "biological desert" on account of its pollutants?
  1. A) Yamuna
  2. B) Periyar
  3. C) Damodar
  4. D) Mahanadi
Assertion (A): Deserts can be potential source for generating sustainable energy.
Reason (R): Deserts receive more energy from the sun in six hours than mankind consumes in a year.
Select The correct answer from the codes given below:
  1. A) Both (A) and (R) are true, and (R) is the correct explanation of (A).
  2. B) Both (A) and (R) are true, but (R) is not the correct explanation of (A).
  3. C) (A) is true, but (R) is false.
  4. D) (A) is false, but (R) is true.