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State PSC Environment & Ecology — practice questions — page 9

Explore 332 free Environment & Ecology questions in State PSC Environment. Open each question or exercise to read its content, reference answers and available explanation.

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Environment & Ecology questions and exercises with answers

Showing questions 241–270 of 332.

Type the numberRead the answer and worked solution →Conservation bingoRead the answer and worked solution →By volume, about what share of air is oxygen?Read the answer and worked solution →Smoke and dust from forest fires and volcanic eruptions are which kind of air pollution source?Read the answer and worked solution →Carbon monoxide from incomplete burning of petrol is dangerous because it:Read the answer and worked solution →The thick fog-like winter layer made of smoke and fog is called:Read the answer and worked solution →Sulphur dioxide, which can permanently damage lungs, is produced mainly by burning:Read the answer and worked solution →CFCs used in refrigerators and aerosol sprays damage the:Read the answer and worked solution →Pollutants discolouring the white marble of which monument in Agra caused concern?Read the answer and worked solution →Which oil refinery near Agra has been blamed for sulphur dioxide and soot affecting the Taj?Read the answer and worked solution →Sulphur dioxide and nitrogen dioxide react with water vapour in air to form acids that fall as:Read the answer and worked solution →Corrosion of the Taj's marble by acid rain is nicknamed:Read the answer and worked solution →To save the Taj, the Supreme Court ordered industries to switch to cleaner fuels like LPG and:Read the answer and worked solution →Trapping of reflected radiation by the earth's atmosphere is called the:Read the answer and worked solution →The gradual rise in the average temperature of the earth's atmosphere due to trapped heat is:Read the answer and worked solution →Besides carbon dioxide, which gases are greenhouse gases?Read the answer and worked solution →Which international agreement aims to reduce greenhouse gas emissions?Read the answer and worked solution →Which Himalayan glacier is reported to be melting because of global warming?Read the answer and worked solution →Van Mahotsav, when lakhs of trees are planted, is held every year in:Read the answer and worked solution →A WWF study found the Ganga among the ten most:Read the answer and worked solution →The National Mission for Clean Ganga was launched in:Read the answer and worked solution →Kanpur, with one of the most polluted Ganga stretches, has more than how many industries?Read the answer and worked solution →Arsenic, lead and fluorides released by industries into rivers cause:Read the answer and worked solution →Ponds look green when farm chemicals wash in because they feed:Read the answer and worked solution →Catch the greenhouse gasesRead the answer and worked solution →Pop the air pollutantsRead the answer and worked solution →Run the pollution numbersRead the answer and worked solution →Slice the pollution wordsRead the answer and worked solution →Air or water pollutantRead the answer and worked solution →Sort cause, effect and remedyRead the answer and worked solution →

Worked practice questions

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Questions
  1. Answer
    55
    Question
    Rock shelters identified in Pachmarhi Biosphere Reserve
  2. Answer
    17
    Question
    Full grown trees needed for one tonne of paper
  3. Answer
    5
    Question
    Times paper can be recycled, at least
  4. Answer
    7
    Question
    Times paper can be recycled, at most
  5. Answer
    100
    Question
    National parks in India, more than
  6. Answer
    1
    Question
    National parks inside Pachmarhi Biosphere Reserve
Instructions
Type the number only.
_Source: syllabus Science, Chapter 7, Conservation of Plants and Animals._

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Conservation bingo

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Clues and terms
  1. Clue
    Clearing forests for other uses.
    Item
    Deforestation
  2. Clue
    Part of earth that supports life.
    Item
    Biosphere
  3. Clue
    Animals safe from disturbance.
    Item
    Sanctuary
  4. Clue
    Found only in one area.
    Item
    Endemic
  5. Clue
    Group able to interbreed.
    Item
    Species
  6. Clue
    Illegal killing of animals.
    Item
    Poaching
  7. Clue
    Numbers falling towards extinction.
    Item
    Endangered
  8. Clue
    Record of endangered species.
    Item
    Red Data Book
  9. Clue
    Planting trees back.
    Item
    Reforestation
Instructions
Read each clue and tap the term it describes.
_Source: syllabus Science, Chapter 7, Conservation of Plants and Animals._

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By volume, about what share of air is oxygen?

  1. 21 per cent
  2. 78 per cent
  3. 50 per cent
  4. 10 per cent
Show answer and solution

Correct answer: A. 21 per cent

1. Nitrogen is about 78 per cent. 2. Oxygen is about 21 per cent. 3. Carbon dioxide and argon are tiny shares. _Source: syllabus Science, Chapter 18, Pollution of Air and Water._

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Science & TechnologyCurrent AffairsIndian GeographySoil & VegetationNational ParksConservationEndangered SpeciesProtected Areas