Change set

Pick exam & year, then Go.

Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q120 (UPPCS/2025) Environment & Ecology › Ecology & Ecosystem Basics

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 :
Code :

Result
Your answer: —  Â·  Correct: D

Explanation

Both statements are correct based on fundamental ecological principles. Statement 1 is correct: green plants in terrestrial ecosystems capture approximately 1% of the solar energy incident on their leaves and convert it into chemical energy through photosynthesis. Statement 2 is correct and refers to Lindeman's 10% Law. This principle states that during energy transfer between trophic levels, only about 10% of the organic matter (energy) is stored as biomass and made available to the next higher level of consumers. The remaining 90% is lost as heat during metabolic processes like respiration or used for growth and reproduction. This significant energy loss at each step typically limits the number of trophic levels in a food chain to three or four.

How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
50%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

NDA-II · 2023 · Q60 Relevance score: 3.81

The green plants in a terrestrial ecosystem absorbs sunlight that falls on their leaves and convert it into food energy. The percentage of solar radiation absorbed by all green plants for the process of photosynthesis is about

IAS · 2016 · Q52 Relevance score: 0.98

With reference to an initiative called The Economics of Ecosystems and Biodiversity (TEEB)', which of the following statements is/are correct? 1. It is an initiative hosted by UNEP, IMF and World Economic Forum. 2. It is a global initiative that focuses on drawing attention to the economic benefits of biodiversity. 3. It presents an approach that can help decision-makers recognize, demonstrate and capture the value of ccosystems and biodiversity. Select the correct answer using the code given below.

UPPCS · 2022 · Q148 Relevance score: 0.40

With reference to ecological niche, which of the following statements is/are correct ?
1. It represents the range of conditions that it can tolerate the resources it utilizes and its functional role in ecological system.
2. Each species has a distinct niche.
Select the correct answer from the code given below :
Code :

UPPCS · 2022 · Q110 Relevance score: -0.45

With reference to Western Uttar Pradesh, which of the following statements is/are correct ?
1. Western region of U.P. is much more developed compared to other regions.
2. The region has witnessed the Green Revolution.
Select the correct answer from the code given below :
Code :