Agriculture and Environment: UPSC Previous Year Questions (Environment and Ecology)
1 previous year UPSC Prelims question on Agriculture and Environment (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 2017Environment and Ecology · Agriculture and Environment
Q1. Which of the following statements can help in water conservation in agriculture? 1. Reduced or zero tillage of the land 2. Applying gypsum before irrigating the field 3. Allowing crop residue to remain in the field Select the correct answer using the code given below:
Explanation
Efficient water use in agriculture refers to practices and techniques that aim to maximize the productivity of crops while minimizing water consumption. It involves employing methods such as capturing and storing water and drip irrigation to deliver water directly to the plant roots, reducing losses due to evaporation or runoff. Statements 1 and 3 are correct: Conservation Tillage includes no-till farming or zero tillage which is a way of growing crops or pasture from year to year without disturbing the soil through tillage. Zero tillage helps in soil moisture conservation. Crop residues act as mulches and reduce evaporation losses and protect the soil from direct impact of raindrops, thus controlling crusting and sealing processes.
Statement 2 is incorrect: Though, Gypsum helps in dissolution of the salt clay pan found in soils that hinder the percolation of water and helps in water conservation.
Answer key for these questions
Q
UPSC year
Correct answer
1
2017
(c) 1 and 3 only
Frequently asked questions
How many previous year UPSC questions are there on Agriculture and Environment?
This page covers 1 previous year UPSC Prelims GS Paper-I questions on Agriculture and Environment (Environment and Ecology), asked from 2011 to 2022. 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 Agriculture and Environment?
Questions on Agriculture and Environment (Environment and Ecology) are available for 9 years, from 2011 to 2022. Use the Year filter to practise a single paper.
