Previous year MCQs

Environment & Ecology UPPSC 2013 GS-I
Question

Sound above what level (in decibels) is considered hazardous noise pollution?

Answer & Solution

Answer: (Detailed Solution Below)

Option D: 80 dB

Detailed Solution:

The correct answer is “80 dB”.
The World Health Organization (WHO) considers noise above 80 decibels (dB) to be hazardous noise pollution.

Similar Questions:

Biodegradable pollutant is:
  1. A) Mercury
  2. B) Sewage
  3. C) Plastic
  4. D) Asbestos
Lahore Session of Muslim League (1940) was presided over by
  1. A) Liaqat Ali Khan
  2. B) Chaudhary Khaliquzzaman
  3. C) Mohammad Ali Jinah
  4. D) Fatima Jinah
Which one of the following rivers does not originate in India?
  1. A) Sutlej
  2. B) Ravi
  3. C) Chenab
  4. D) Beas
Which one of the following statements is not correct regarding the amino acid, tyrosine, present in protein rich foods?
  1. A) It can help increase energy level.
  2. B) It can cope with emotional and environmental stress.
  3. C) It can combat depression.
  4. D) It can protect against free-radicals responsible for ageing.
Assertion (A): The Ganga is a highly polluted river.
Reason (R): The holier the river, the more polluted it is.

Select the correct answer from the following code:
  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
Which of the following is indicator of air pollution ?
  1. A) Puffballs
  2. B) Algae
  3. C) Lichen
  4. D) Moss
World Ozone day is celebrated on:
  1. A) September,16
  2. B) April,21
  3. C) December, 25
  4. D) January, 30
While India's Human population is growing at an astounding pace, the bird population is shrinking fastly mainly because:

1. there has been an abnormal increase in the number of hunters.
2. bio-pesticides and organic manure are being used on an large scale.
3. there has been a large scale reduction in the habitats of the birds.
4. there has been a large scale used of pesticides, chemical fertilizers and mosquito repellents.

Select your answer correctly using the codes given below:
Codes:
  1. A) 1 and 2 are correct
  2. B) 2 and 3 are correct
  3. C) 3 and 4 are correct
  4. D) 1 and 4 are correct
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
Who as declared the best actress at the 60th National Film Award function held on 18thMarch 2013?
  1. A) Dolly Ahluwalia
  2. B) Rani Mukherjee
  3. C) Sridevi
  4. D) Usha Jadhav
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
Trophic levels are formed by-
  1. A) Organisms linked in food chain
  2. B) Plants only
  3. C) Animals only
  4. D) Carnivorous animals