71UPPSC2002Environment & EcologyEnglish
The highest trophic level in an ecosystem is obtained by
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Correct option: C — Omnivores
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Environment & Ecology MCQ practice free online · page 8
Questions from RRB, NTPC, Group D and JE past papers. Tap an option to check it instantly — every question shows the correct answer, and most carry the explanation the paper gave.
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- 72RPSC2013Environment & EcologyEnglish
Which of the following is not a biotic component of an ecosystem?
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Correct option: A — Air
- 73Sikkim PSC2017Environment & EcologyEnglish
The primary source of energy in Eco-body is
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Correct option: C — Solar energy
- 74Arunachal PSC2018Environment & EcologyEnglish
In a food chain, man is
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Correct option: D — primary as well as secondary consumer
- 75CGPSC2016Environment & EcologyEnglish
10% law is related with
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Correct option: A — transfer of energy as food from one tropic level to other
- 76UPPSC2005Environment & EcologyEnglish
In the marine environment, the main primary producers are
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Correct option: A — Phytoplanktons
- 77UPPSC2013Environment & EcologyEnglish
Among the biotic components of the ecosystem, the producer system is
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Correct option: D — green plants
- 78MPPSC2016Environment & EcologyEnglish
Trophic level I includes
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Correct option: D — Green plants
- 79UPPSC2015Environment & EcologyEnglish
Which one of the following pairs is correctly matched?
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Correct option: C — Green plants - Ecosystem
- 80UPPSC2010Environment & EcologyEnglish
The correct order in the food chain of the various components of a terrestrial grass ecosystem is
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Correct option: A — Grass, grasshopper, frog, snake
Environment & Ecology practice — common questions
Page 8 of this set has 10 questions on it.
Are these Environment & Ecology questions free to practise?
Yes. Every question on this page is free and needs no account. Create a free account only if you want your progress saved.
Where do these Environment & Ecology MCQs come from?
They are taken from official past papers of Indian government recruitment exams such as RRB NTPC, RRB Group D and RRB JE, and each question keeps a reference to the exam it appeared in.
Are the questions available in Hindi?
Yes. Many papers are set in both languages, so a large share of these questions are available in Hindi. Use the language filter at the top of the page.
Do the questions show answers and explanations?
Every question shows the correct option. Where the source paper included a worked solution, the explanation is shown under "Show answer".