UPPSC Prelims Environmental ecology PYQ

2025

5

2025 · Set A

With reference to Ecosystem, which of the following statements is/are correct?1.Green plants in terrestrial ecosystem capture about 1% of energy of the sunlight that falls on their leaves.2.Around 10% of organic matter reaches to the next higher level of consumers.Select the correct answer from the code given below:

Solution

2024

9

2024 · Set A

Which of the following statements is not true about "ecological niche"?Select the correct answer from the code given below:

Solution

2023

103

2023 · Set A

Biological Oxygen Demand (BOD) is a standard criterion for:

Solution

112

2023 · Set A

An example of a lotic ecosystem is:

Solution

117

2023 · Set A

Trophic levels are formed by:

Solution

2021

41

2021 · Set D

Given below are two statements, one is labelled asAssertion (A) :and other as Reason (R):Assertion (A):Various components of an ecosystem are not interdependent.Reason (R):Human activities have impacts on the environment.Select the correct answer using the codes given below.

Solution

2020

79

2020 · Set A

The movement of nutrient elements through the various components of an ecosystem is called

Solution

144

2020 · Set A

The concept of 'Ecological Transition' was first used by

Solution

2019

55

2019 · Set A

What is true about an ecosystem?

Solution

131

2019 · Set A

With reference to the Deep Carbon Observatory (DCO), which of the following statements is/are correct?1.It is a global research programme to further understand the role of carbon on Earth.2.It conducts field observations of deep microbial ecosystems.Select the correct answer from the codes given below:

Solution

134

2019 · Set A

The amount of energy transferred from one trophic level to another in an ecosystem:

Solution

2018

127

2018 · Set B

Which is the most stable ecosystem?

Solution