Previous year MCQs

Environment & Ecology UPPSC 2000 GS-I
Question

Which one of the following environments gives the least bio-mass production per year?

Answer & Solution

Answer: (Detailed Solution Below)

Option A: Deep Sea

Detailed Solution:

The correct answer is “Deep Sea”.
Deep Sea environments produce the least biomass per year.

Similar Questions:

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
Arrange the following events in chronological order of their commencement and select correct answer from the codes given below:

I. Wild Life (Protection) Act
II. Biological Diversity Act
III. Project Tiger
IV. Project Elephant

Codes:
  1. A) I, II, III, IV
  2. B) I, III, IV, II
  3. C) II, III, IV, I
  4. D) II, III, I, IV
Which one of the following states has the ideal habitat for the Siberian crane?
  1. A) Arunachal Pradesh
  2. B) Assam
  3. C) Andhra Pradesh
  4. D) Rajasthan
Match List – I with List – II and select the correct answer from the code given below the lists.

List-I (Sustainable Development Goal (SDG)) List-II (Related with)
A. SDG 10 - 1. Climate change
B. SDG 13 - 2. Life on land
C. SDG 14 - 3. Reduced inequalities
D. SDG 15 - 4. Life below water
  1. A) 1 2 3 4
  2. B) 2 3 1 4
  3. C) 3 2 4 1
  4. D) 3 1 4 2
Helen Clark is the second woman Prime Minister of:
  1. A) Australia
  2. B) Canada
  3. C) New Zealand
  4. D) Sweden
Indiscriminate use of fertilizers have led to:
  1. A) soil pollution
  2. B) water pollution
  3. C) air pollution
  4. D) All of the above
If the difference between 3/ 8th and 2/7th of a number is 25, then the number is:
  1. A) 250
  2. B) 260
  3. C) 270
  4. D) 280
Which of the following statements about Radioactive pollution are correct?

1. It causes hereditary change in the animals.
2. It causes dis-balance among different minerals in the soil.
3. It hinders blood circulation.
4. It causes carcinogenesis.

Select the correct answer from the codes given below:
Codes:
  1. A) 1 and 2
  2. B) 1 and 4
  3. C) 1, 3 and 4
  4. D) 2, 3 and 4
Consider the following statements and select the correct answer from the code given below:

Assertion (A): The natural environment is clean
Reason(R): Human activities cause environ-mental pollution.

Code:
  1. A) Both A and R are correct arid R is the correct explanation of A
  2. B) Both A and R are correct but R is not the correct explanation of A
  3. C) A is correct but R is wrong
  4. D) A is correct but R is correct
Which one of the following trees which was once popular in Social forestry has now turned out to be an "ecological terrorist"?
  1. A) Babool
  2. B) Amaltash
  3. C) Eucalyptus
  4. D) Neem
Assertion (A): The urban population of India is more than that of the U.S A.

Reason (R): The level of urbanisation in the U.S.A. is higher than that in India.
Codes:
  1. A) Both A and R are true andR 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 is the most effective factor of coral bleaching?
  1. A) Marine pollution
  2. B) Increase of salinity of seas
  3. C) Rise in normal temperature of sea-water
  4. D) Outbreak of diseases and epidemics