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Man and his environment

Class 10 · Biology · 9 questions

Name: ____________________   Date: ____________

  1. Plants are called producers because they:

    • A Break down food
    • B Decompose waste
    • C Make their own food
    • D Eat animals
  2. In a food chain, the first organism is always a:

    • A Producer
    • B Consumer
    • C Decomposer
    • D Carnivore
  3. Organisms that break down dead matter are:

    • A Decomposers
    • B Producers
    • C Predators
    • D Herbivores
  4. Which of these is a greenhouse gas?

    • A Helium
    • B Methane
    • C Neon
    • D Argon
  5. Cutting down forests is called:

    • A Afforestation
    • B Deforestation
    • C Reforestation
    • D Conservation
  6. The Sun is the ultimate source of energy for:

    • A Fungi only
    • B Almost all food chains
    • C Only animals
    • D Only plants in water
  7. An animal that eats both plants and animals is an:

    • A Carnivore
    • B Herbivore
    • C Decomposer
    • D Omnivore
  8. Recycling helps to:

    • A Cause pollution
    • B Increase waste
    • C Destroy forests
    • D Reduce waste
  9. The release of harmful substances into the environment is:

    • A Conservation
    • B Succession
    • C Pollution
    • D Respiration

Answer key

1. C, 2. A, 3. A, 4. B, 5. B, 6. B, 7. D, 8. D, 9. C

  1. Plants make food by photosynthesis.

  2. Food chains start with a producer.

  3. Bacteria and fungi decompose dead organisms.

  4. Methane and carbon dioxide trap heat.

  5. Deforestation is the large scale removal of trees.

  6. Plants capture its energy.

  7. Omnivores eat both.

  8. It reduces the use of raw materials.

  9. This is pollution.