Previous year MCQs

Environment & Ecology UPPSC 2019 GS-I
Question

What is true about ecosystem?

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Producers are more than Primary Consumers

Detailed Solution:

The correct answer is “Producers are more than Primary Consumers”.
The consumers utilize materials and energy stored by the producers. Decomposers obtain their food molecules from the organic materials of dead producers and consumers.

In a true ecosystem, producers are more than consumers (herbivores and carnivores).

Similar Questions:

Nitrogen fixing bacteria make combination with cell of the root of:
  1. A) Pulses
  2. B) Rice
  3. C) Wheat
  4. D) Sugarcane
Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R)

Assertion (A): There is a positive relation between Human Development Index (HDI) and Sustainable Development Goals (SDG) ranking of Indian State.
Reason (R): The underlying dimension of SDG targets are closely related to education and health aspect.

Select the correct answer from the codes given below:
Codes:
  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 is the correct definition of "Agenda 21" ?
  1. A) It is an action plan of U.N.O. for protecting human rights.
  2. B) It is a book of 21 chapters on nuclear disarmament.
  3. C) It is an action plan for the conservation of global environment in 21st century.
  4. D) It is an agenda for the election of the President in the next meeting of SAARC.
'Saving energy and other resources for the future without sacrificing people's comfort in the present' is the definition of which of the following concepts?
  1. A) Economic growth
  2. B) Economic development
  3. C) Sustainable development
  4. D) Human development
Who has propounded the concept of 'Limit to Growth'?
  1. A) Club of Rome
  2. B) UNESCO
  3. C) Brundtland Commission
  4. D) Agenda 21
Sound above what level (in decibels) is considered hazardous noise pollution?
  1. A) 30 dB
  2. B) 40 dB
  3. C) 60 dB
  4. D) 80 dB
In a food chain, man is:
  1. A) producer
  2. B) only primary consumer
  3. C) only secondary consumer
  4. D) primary as well as secondary consumer
First National Centre for Marine Biodiversity (NCMB) of India is situated at -
  1. A) Mumibai
  2. B) Jamnagar
  3. C) Bhavnagar
  4. D) Puducherry
The First Union Territory of India to run 100 percent on solar energy is:
  1. A) Andaman-Nicobar
  2. B) Chandigarh
  3. C) Diu
  4. D) Puducherry
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 reasons caused catastrophic coral bleaching and mass coral deaths in the Andaman and Nicobar Islands?
  1. A) Increased industrial activities in the coastal regions
  2. B) Increase of 2° C temperature in the Indian Ocean
  3. C) Heavy marine pollution
  4. D) Decrease of temperature by 4° C in the Indian Ocean
Which of the following is not correctly matched ?
  1. A) Vitramin B6 - Rice Bran
  2. B) Vitamin B2 - Cod-liver oil
  3. C) Vitamin E - Wheat Germ Oil
  4. D) Vitamin K - Alfalafa