Previous year MCQs

Environment & Ecology UPPSC 1996 GS-I
Question

Which of the following metals pollute the air of a city, having a very large number of automobiles?

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Lead

Detailed Solution:

The correct answer is “Lead”.

Lead is the metal that has been known to pollute the air in cities with a high number of automobiles.

Lead was commonly used in gasoline as an additive (tetraethyl lead) to improve engine performance. Although its use has been largely phased out in many countries due to its harmful environmental and health effects, lead pollution from automobile exhausts was a significant issue in the past.

Similar Questions:

Arrange the following events in chronological order of their commencement:

I. Project Tiger
II. Project Elephant
III. Wildlife Protect Act
IV. Biological Diversity Act

Select the correct answer using the codes given below.
  1. A) I, II, III, IV
  2. B) II, I, IV, III
  3. C) III, I, II, IV
  4. D) II, IV, I, II
The largest desert of South Asia is:
  1. A) Atacama
  2. B) Colorado
  3. C) Kalahari
  4. D) Thar
"Dronacharya" Award is given in recognition of:
  1. A) Best coaching in sports
  2. B) Best research work in medicines
  3. C) Best N.C.C. cadet
  4. D) Best wrestler
Special Economic Zone (SEZ) Act became effective in
  1. A) 2004
  2. B) 2005
  3. C) 2006
  4. D) 2007
Which one of the following is a secretion from the body of an insect?
  1. A) Pearl
  2. B) Coral
  3. C) Lac
  4. D) Gum
Which one among the following substances does not contribute to global warming?
  1. A) Oxides of Sulphur and Nitrogen
  2. B) Methane
  3. C) Carbon dioxide
  4. D) Water vapour
Which one of the following is not a secondary pollutant ?
  1. A) PAN
  2. B) Smog
  3. C) Sulphur dioxide
  4. D) Ozone
Which of the following is not correctly matched:
  1. A) autotroph–producer
  2. B) heterotroph–consumer
  3. C) saprotroph–decomposer
  4. D) herbivore–secondary consumer
Match List-I with List-II and select the correct answer by using the codes given below the lists:
List-I (Biosphere Reserve) - List-II (Location)

A) Nokrek - 1) Kerala
B) Manas - 2) Assam
C) Dehang Debang - 3) Meghalaya
D) Agasthyamalai - 4) Arunachal Pradesh
  1. A) A-2 B-3 C-1 D-4
  2. B) A-3 B-2 C-4 D-1
  3. C) A-4 B-1 C-3 D-2
  4. D) A-1 B-4 C-2 D-3
Who was the winner of 1996 men's Australian Open Singles?
  1. A) Pete Sampras
  2. B) Andre Agassi
  3. C) Boris Becker
  4. D) Thomas Muster
A BOD in a water body, the excess of BOD indicates that its water is:
  1. A) Gaining minerals
  2. B) Getting gaseous
  3. C) Is polluted with sewage
  4. D) Atrophic
In which of the following years, the Environment (Protection) Act passed by the Government of India ?
  1. A) 1982
  2. B) 1986
  3. C) 1990
  4. D) 1992