Ecology, Ecosystem and Functions of Ecosystem: UPSC Previous Year Questions (Environment and Ecology)
1 previous year UPSC Prelims question on Ecology, Ecosystem and Functions of Ecosystem (Environment and Ecology). Choose an option to see the answer and explanation.
Explanations state facts as of the year each question was asked; words like “recently” refer to that year.
Showing 1–1 of 1 question
UPSC 2018Environment and Ecology · Ecology, Ecosystem and Functions of Ecosystem
Q1. Which of the following leaf modifications occur(s) in the desert areas to inhibit water loss? 1. Hard and waxy leaves 2. Tiny leaves 3. Thorns instead of leaves Select the correct answer using the code given below:
Explanation
Both warm and mid-latitude deserts have a predomi-nance of xerophytic or drought-resistant plants. This comprises cacti, thorny bushes, wiry grasses with extensive roots, and scattered dwarf acacias.
Option (d) is correct: In order to gather moisture and search for ground water, the majority of desert shrubs have lengthy roots that are widely distributed. These plants typically have a few (or no leaves) tiny, needle-shaped, waxy, leathery leaves or hairy foliage to reduce water loss through transpiration.
Answer key for these questions
Q
UPSC year
Correct answer
1
2018
(d) 1, 2 and 3
Frequently asked questions
How many previous year UPSC questions are there on Ecology, Ecosystem and Functions of Ecosystem?
This page covers 1 previous year UPSC Prelims GS Paper-I questions on Ecology, Ecosystem and Functions of Ecosystem (Environment and Ecology), asked from 1996 to 2025. Each has the correct answer and an explanation.
How should I use previous year UPSC questions for Prelims?
Attempt each question first, then open the answer and read the explanation for every option. Repeat by chapter, and track which statements UPSC reuses across years. Previous year questions show the exam pattern and difficulty level.
Which years are covered for Ecology, Ecosystem and Functions of Ecosystem?
Questions on Ecology, Ecosystem and Functions of Ecosystem (Environment and Ecology) are available for 12 years, from 1996 to 2025. Use the Year filter to practise a single paper.
