81CGPSC2016Environment & EcologyEnglish
Which of the following constitute a food chain?
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Correct option: B — Grass, goat and human
Free · past papers · answers included
Environment & Ecology MCQ practice free online · page 9
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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- 82UPPSC2010Environment & EcologyEnglish
Biomass Pyramid is reversed in which type of ecosystem?
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Correct option: B — Pond
- 83UPSC1997Environment & EcologyEnglish
Which one of the following organisms is likely to show the highest concentration of DDT, once it has been introduced into the ecosystem?
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Correct option: C — Snake
- 84UPPSC2010Environment & EcologyEnglish
Which one of the following trees is not Eco-friendly?
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Correct option: B — Eucalyptus
- 85UPPSC2005Environment & EcologyEnglish
Which one of the following trees is considered to be an environmental hazard?
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Correct option: D — Eucalyptus
- 86MPPSC2014Environment & EcologyEnglish
The example of ‘Lentic Habitat’ in the freshwater community is
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Correct option: A — Ponds and swamps
- 87UPPSC2012Environment & EcologyEnglish
The transitional zone between two distinct communities is known as
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Correct option: D — Ecotone
- 88UPPSC2013Environment & EcologyEnglish
Which of the following is the most stable ecosystem?
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Correct option: C — Ocean
- 89UPPSC2012Environment & EcologyEnglish
The cycling of elements in an ecosystem is called
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Correct option: B — Biogeochemical cycles
- 90UPPSC2005Environment & EcologyEnglish
Which one of the following is not related with ecological balance?
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Correct option: C — Industrial management
Environment & Ecology practice — common questions
Page 9 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".