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IBPS RRB Officer Scale 1 Environment — practice by topic

Browse 30 questions across 10 Environment topics. Choose what you want to revise, then open a question to check its answer and worked solution.

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Environment topics

Conservation (30)Current Affairs (30)Endangered Species (30)Environment Basics (30)Environment & Ecology (30)Indian Geography (30)National Parks (30)Protected Areas (30)Science & Technology (30)Transport & National Parks (30)

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A region grows more than 50,000 different strains of rice. This variety is an example of:Read the answer and worked solution →India, with deserts, mangroves, coral reefs and alpine meadows, shows greater ___ diversity than Norway.Read the answer and worked solution →Species richness rises with area up to a limit; this relation was first noted by:Read the answer and worked solution →Out of every 10 animal species on Earth, roughly how many are insects?Read the answer and worked solution →

Worked practice questions

A region grows more than 50,000 different strains of rice. This variety is an example of:

  1. Genetic diversity
  2. Species diversity
  3. Ecosystem diversity
  4. Latitudinal diversity
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Correct answer: A. Genetic diversity

1. All the strains belong to one species, rice. 2. The variation is at the level of genes. 3. That is genetic diversity. _Source: syllabus Biology, Chapter 15, Biodiversity and Conservation._

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India, with deserts, mangroves, coral reefs and alpine meadows, shows greater ___ diversity than Norway.

  1. Seasonal
  2. Ecosystem
  3. Genetic
  4. Molecular
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Correct answer: B. Ecosystem

1. Each of these is a different ecosystem. 2. Norway has far fewer ecosystem types. 3. So India has greater ecosystem diversity. _Source: syllabus Biology, Chapter 15, Biodiversity and Conservation._

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Species richness rises with area up to a limit; this relation was first noted by:

  1. Alexander von Humboldt
  2. Charles Robert Darwin
  3. Robert May of Oxford
  4. Paul Ehrlich of Stanford
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Correct answer: A. Alexander von Humboldt

1. The observation came from South American explorations. 2. The relation is a rectangular hyperbola. 3. It was made by Alexander von Humboldt. _Source: syllabus Biology, Chapter 15, Biodiversity and Conservation._

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How to practise

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  2. Open the question to check the correct answer and read its worked solution.
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