Class 8 Science Chapter 1 Quiz
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Questions and Answers

Which of the following is a non-metallic element essential for living organisms?

  • Iron
  • Nitrogen
  • Oxygen (correct)
  • Calcium
  • What is the process of conversion of water into its vapor called?

  • Evaporation (correct)
  • Condensation
  • Precipitation
  • Sublimation
  • What is the unit of measurement for electric current?

  • Amperes (correct)
  • Ohms
  • Watts
  • Volts
  • What is the primary purpose of crop rotation in agriculture?

    <p>To improve soil fertility and structure</p> Signup and view all the answers

    Why is it important to remove weeds from the crop fields?

    <p>Weeds compete with crops for nutrients, water, and sunlight</p> Signup and view all the answers

    Which of the following is an example of organic manure?

    <p>Compost</p> Signup and view all the answers

    Study Notes

    Essential Elements

    • Oxygen is a non-metallic element essential for living organisms.

    Water Cycle

    • Evaporation is the process of conversion of water into its vapor.

    Electricity

    • Ampere (A) is the unit of measurement for electric current.

    Crop Rotation

    • The primary purpose of crop rotation in agriculture is to maintain soil fertility and reduce pests and diseases.

    Weed Management

    • Removing weeds from crop fields is important to prevent competition for water, nutrients, and light, and to reduce the risk of pests and diseases.

    Organic Manure

    • Compost is an example of organic manure.

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    Description

    Test your knowledge of science with this quiz on Class 8 science chapter 1. Explore questions on electric current measurement units, essential non-metallic elements for living organisms, and the process of water turning into vapor. Challenge yourself and expand your understanding of these fundamental scientific concepts.

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