Previous year MCQs

Environment & Ecology UPPSC 2024 GS-I
Question

Which of the following statements is not true about "ecological niche"?

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Number of species becomes small in ecological niche if resources are sufficient.

Detailed Solution:

The correct answer is “Number of species becomes small in ecological niche if resources are sufficient.”.

Dominant species often have a wider ecological niche because they can adapt to a variety of conditions and resources, allowing them to occupy broader ecological roles in an ecosystem.

If resources are abundant in an ecosystem, it can support a higher number of species due to the availability of food, space, and other necessary environmental conditions. This promotes greater biodiversity within the niche.

If resources are abundant, it typically allows for greater species diversity, not fewer species. More resources can sustain more species, leading to an increase in biodiversity, not a decrease.

When resources are distributed more equitably, no single species can monopolize the resources, which leads to a reduction in the dominance of one species. This allows for a more diverse range of species to coexist.

Similar Questions:

The concept of ecological niche was enunciated by
  1. A) Greenels
  2. B) Darwin
  3. C) E.P.Odum
  4. D) C.C.Park
Among the following Union Territories the female Literacy is highest according to Census 2011
  1. A) Poducherry
  2. B) Chandigarh
  3. C) Daman and Diu
  4. D) Lakshdweep
Methane gas producing field is:
  1. A) Wheat field
  2. B) Paddy field
  3. C) Cotton field
  4. D) Groundnut field
The World Habitat Day is observed on:
  1. A) March 21
  2. B) March 23
  3. C) June 5
  4. D) October 7
Given below are two statements:

Assertion (A): Natural vegetation is the true index of climate.
Reason (R): Water-loving plants are found in moist climate.

In the context of the above, which one of the following is correct?
  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) (B) is false, but (R) is true
ISO 14001 is:
  1. A) an international spy network to watch nuclear explosion in any part of the world
  2. B) a Pakistani network to organise terrorist activities in India
  3. C) an international certificate issued to industrial units for having established Pollution Control System
  4. D) a certificate issued by the Government regarding the quality of a product
With reference to the Anti-Maoist operation that took place in April 2024, which of the following statements is/are correct?

1. It took place in Gadchiroli district of Maharashtra.
2. The operation was launched by BSF and District Reserve Guards.

Select the correct answer from the codes given below:
  1. A) Only 2
  2. B) Neither 1 nor 2
  3. C) Only I
  4. D) Both 1 and 2
Which of the following statements is true regarding the trend of unemployment rate in India between July-September, 2019 and July-September, 2022?

1. It remained the same.
2. It declined.

Select the correct answer from the codes given below:
  1. A) 2 is true and 1 is false
  2. B) Both 1 and 2 are false
  3. C) 1 is true and 2 is false
  4. D) Both 1 and 2 are true
"Chipko" movement was basically against
  1. A) Water pollution
  2. B) Noise pollution Deforestation
  3. C) Deforestation
  4. D) Pollution
"Project Tiger" of the Government envisages:
  1. A) To observe the habits of the tiger
  2. B) Collect vital information about different species
  3. C) To save the Indian tiger from extinction
  4. D) None of these
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
World Ozone Day is celebrated on
  1. A) 25th December
  2. B) 21 April
  3. C) 16th September
  4. D) 30th January