Previous year MCQs

Environment & Ecology UPPSC 1998 GS-I
Question

The biggest contribution to air pollution in Calcutta is:

Answer & Solution

Answer: (Detailed Solution Below)

Option A: automobiles

Detailed Solution:

The correct answer is “automobiles”.
According to a 2017 study published by MDPI, transportation in Kolkata was the major factor behind the city's air pollution crisis, owing to an abundance of poorly maintained vehicles and the use of petrol fuel.

Similar Questions:

Today the largest contributor to carbon dioxide (CO2) emissions is:
  1. A) China
  2. B) Japan
  3. C) Russia
  4. D) U.S.A.
Example of Lotic ecosystem is
  1. A) Swamps
  2. B) Rivers
  3. C) Ponds
  4. D) Marshy area
Which of the following is a correct statement?
  1. A) Energy flow in the biospheric ecosystem is unidirectional.
  2. B) Energy flow in the biospheric ecosystem is cyclic.
  3. C) Relative loss of energy in natural ecosystem decreases with increasing trophic levels.
  4. D) Species at progressively higher tropic levels appear to be less efficient in using available energy.
First National Centre for Marine Biodiversity (NCMB) of India is situated at -
  1. A) Mumibai
  2. B) Jamnagar
  3. C) Bhavnagar
  4. D) Puducherry
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 one of the following Indian metropolises has the best corporate health-care system?
  1. A) Calcutta
  2. B) Chennai
  3. C) Delhi
  4. D) Mumbai
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
The Government of India enacted the Forest Conservation Act in the year:
  1. A) 1976
  2. B) 1980
  3. C) 1983
  4. D) 1988
The Supreme Court was set up for the first time in India under the:
  1. A) Regulating Act-1773
  2. B) Charter Act-1853
  3. C) Govt. of India Act-1935
  4. D) Constitution of India-1950
The cycling of elements in an ecosystem is called
  1. A) Chemical cycles
  2. B) Biogeochemical cycles
  3. C) Geological cycles
  4. D) Geochemical cycles
What is true about ecosystem?
  1. A) Primary Consumers are least dependent Upon Producer
  2. B) Primary Consumers are out-number producers
  3. C) Producers are more than Primary Consumers
  4. D) Secondary Consumers are the largest and most powerful
The term for the judges of the International Court of Justice is:
  1. A) 3 years
  2. B) 5 years
  3. C) 6 years
  4. D) 9 years