101UPPSC2016Environment & EcologyEnglish
Which of the following shows density gradient of water system?
Show answerAnswer & explanation
Correct option: C — Pycnocline
Free · past papers · answers included
Environment & Ecology MCQ practice free online · page 11
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.
No sign-up10 per pageAnswers & explanations
- 102APPSC2016Environment & EcologyEnglish
In the grassland, trees do not replace the grasses as a part of an ecological succession because of
Show answerAnswer & explanation
Correct option: C — Water limits and fire
- 103UPPSC2016Environment & EcologyEnglish
Which one of the following is the correct sequence of the phases of biotic succession?
Show answerAnswer & explanation
Correct option: A — Nudation, Migration, Ecesis, Reaction, Stabilization
- 104UPPSC2017Environment & EcologyEnglish
Which one of the following is the correct order of biological organisation ranging from organism to biosphere?
Show answerAnswer & explanation
Correct option: C — Population-Community-Ecosystem-Landscape
- 105UPPSC2002Environment & EcologyEnglish
Consider the following statements relating to the ecosystem. 1. The term ecosystem was first used by A.G. Tansley. 2. Those organisms which produce their food themselves are termed as autotrophs. 3. Consumers consume their food through the process of photosynthesis. 4. Decomposers convert inorganic matter into organic matter. Which of the above statements are correct?
Show answerAnswer & explanation
Correct option: A — 1 and 2
- 106HPSC2019Environment & EcologyEnglish
Which of the following statements is true about Bionomics? 1. It means ‘management of life’. 2. It is a synonymous with ecology. 3. It stresses on the value of natural systems which influence human systems.
Show answerAnswer & explanation
Correct option: C — 2 and 3
- 107WBPSC2019Environment & EcologyEnglish
In the context of ecosystem productivity, marine upwelling zones are important as they increase the marine productivity by bringing the 1. Decomposer micro-organisms to the surface. 2. Nutrients to the surface. 3. Bottom-dwelling organisms to the surface. Which of the statements given above is/are correct?
Show answerAnswer & explanation
Correct option: B — Only 2
- 108UPSC2014Environment & EcologyEnglish
Concerning ‘Eco-Sensitive Zones’, which of the following statements is/are correct? 1. Eco-Sensitive Zones are the areas that are declared under the Wildlife (Protection) Act, 1972. 2. The purpose of the declaration of Eco-Sensitive Zones is to prohibit all kinds of human activities in those zones except agriculture. Select the correct answer using the code given below.
Show answerAnswer & explanation
Correct option: D — Neither 1 nor 2
- 109UPSC2013Environment & EcologyEnglish
Concerning the food chains in ecosystem, which of the following kinds of an organism is/are known as decomposer organism/ organisms? 1. Virus 2. Fungi 3. Bacteria Select the correct answer using the code given below.
Show answerAnswer & explanation
Correct option: B — 2 and 3
- 110PPSC2015Environment & EcologyEnglish
Which of the following are the primary consumers in an ecosystem? 1. Ants 2. Deer 3. Fox 4. Tiger Select the correct answer from the code given below.
Show answerAnswer & explanation
Correct option: A — 1 and 2
Environment & Ecology practice — common questions
Page 11 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".