Previous year MCQs

Environment & Ecology UPPSC 2019 GS-I
Question

The amount fo energy during transfer from one trophic level to another in an ecosystem:

Answer & Solution

Answer: (Detailed Solution Below)

Option B: Decreases

Detailed Solution:

The correct answer is “Decreases”.
The amount of energy during transfer from one trophic level to another in an ecosystem decreases.

This is known as the 10% law, which states that only about 10% of the energy is passed on to the next trophic level, while the rest is lost primarily as heat.

Similar Questions:

Use of polished rice in human diet causes following diseases:
  1. A) Rickets
  2. B) Anemia
  3. C) Goitre
  4. D) Beriberi
'Vegetation is the true index of climate'. This statement is associated with:
  1. A) Thornthwaite
  2. B) Koppen
  3. C) Trewartha
  4. D) Stamp
Environmental degradation means
  1. A) overall lowering of environmental qualities
  2. B) adverse changes brought in by human activities
  3. C) ecological imbalance because of ecological diversity
  4. D) all the above
Which of the following Direct Benefit Scheme (DBS) has been recognized by the 'Guinness Book of World Record' as the world's largest Direct Benefit Scheme?
  1. A) MGNREGA
  2. B) PAHAL
  3. C) NSAP
  4. D) None of the above
What do we call balancing the need to use resources and also conserve them for the future?
  1. A) Sustainable development
  2. B) Resource conservation
  3. C) Future resources
  4. D) Reducing consumption
Which of the following factor is the most important factor for the lost of biodiversity?
  1. A) Genetic assimilation
  2. B) Control of predators
  3. C) Destruction of natural habitat
  4. D) Pest control
Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R).

Assertion (A): Sustainable development is important for well being of human society.

Reason (R): Sustainable development is a kind of development that meets the needs of the present without compromising the ability of future generations to meet their own needs.

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 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
Which of the following is not a biodegradable polluter?
  1. A) Domestic waste
  2. B) Faecal matter
  3. C) Urine
  4. D) Pesticide
Which of the following tree, once very popular in social forestry, is now taken to be environmental hazard:
  1. A) Babul
  2. B) Amaltas
  3. C) Neem
  4. D) Eucalyptus
Which one of the following provides the cryogenic indicator of climate change?
  1. A) Ice core
  2. B) Fossilized pollen
  3. C) Tree ring growth
  4. D) Evaporite deposits
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