Previous year MCQs

Environment & Ecology UPPSC 2021 GS-I
Question

Which of the following is indicator of air pollution ?

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Lichen

Detailed Solution:

The correct answer is “Lichen”.
Lichen is a reliable indicator of air pollution.

It is a symbiotic organism composed of a fungus and an alga. Lichens are sensitive to air pollutants, especially sulfur dioxide. When air quality is poor, lichens struggle to survive and may even die. The presence or absence of lichens in a particular area can provide valuable information about the local air quality.

Similar Questions:

With reference to Eutrophication, which of the following statement(s) is/are correct ?

1) It decreases dissolved oxygen of water.
2) It is a phenomenon of nutrient enrichment of a water body.

Select the correct answer from the codes given below.
  1. A) 1 only
  2. B) 2 only
  3. C) Both 1 and 2
  4. D) Neither 1 nor 2
When was India's first National Action Plan on Climate Change released?
  1. A) 2000
  2. B) 2008
  3. C) 2012
  4. D) 2015
Which one of the following trees is considered to be an environmental hazard?
  1. A) Babul
  2. B) Amaltas
  3. C) Neem
  4. D) Eucalyptus
What do we call balancing the need to use resources and also conserve them for the future?
  1. A) Sustainable development
  2. B) Resource conservation
  3. C) Future resources
  4. D) Reducing consumption
The discussion on 'Sustainable Development' was started after submitting a report on environment to the United Nation in 1987. That report was:
  1. A) First Report on Climate Change
  2. B) Our Common Future
  3. C) Second Report on Climate Change
  4. D) Fifth Assessment Report
Which of the following is the correct sequence of phases of Biotic succession?
  1. A) Ecesis - Migration - Reaction - Stabilisation
  2. B) Ecesis - Migration - Stabilisation - Reaction
  3. C) Migration - Reaction - Stabilisation - Ecesis
  4. D) Migration - Ecesis - Reaction- Stabilisat
Which country has natural arsenic water contamination ?
  1. A) Sri Lanka
  2. B) Bangladesh
  3. C) Bhutan
  4. D) Pakistan
Incinerators are used for which of the following?
  1. A) Burning wastes
  2. B) Putting wastes into them
  3. C) For cutting green trees
  4. D) For making fertilizers
The problem of water pollution with Arsenic is maximum in:
  1. A) Haryana
  2. B) Rajasthan
  3. C) Madhya Pradesh
  4. D) West Bengal
Which of the following is the most stable ecosystem?
  1. A) Desert
  2. B) Mountain
  3. C) Ocean
  4. D) Forest
Match List-I with List-II and choose the correct answer using the codes given below the lists:
List-I - List-II
(Biosphere Reserve) - (State)

A. Simlipal - 1. Kerala
B. Nokrek - 2. Odisha
C. Agasthyamalai - 3. Assam
D. Manas - 4. Meghalaya

Codes:
A B C D
  1. A) 1 2 4 3
  2. B) 3 1 4 2
  3. C) 2 4 3 1
  4. D) 2 4 1 3
Which of the following is not a sustainable development goal targeted to be achieved by 2030?
  1. A) Gender Equality
  2. B) Good health and well being
  3. C) Zero Hunger
  4. D) Space Research