Environment - Worksheets

 CBSE Worksheet 01

Environment

  1. Which of the following statement is false
    1. All plants, land and human beings do not depend on their immediate surroundings.
    2. All plants, animals and human are also interdependent on each other.
    3. There could be an ecosystem of large rain forest, grassland, desert, mountains, lake, river, ocean and even a small pond.
    4. This relation between the living organisms, as well as the relation between the organisms and their surroundings, forms an ecosystem.
  2. Which of the following is not the human environment
    1. Family
    2. Building
    3. Community
    4. Education
  3. Which force of the Earth holds the atmosphere around it?
    1. Pushing force
    2. Pulling force
    3. Nuclear force
    4. Gravitational force
  4. Human beings modify the natural environment except
    1. Food is served in vessels
    2. They plant more and more tree
    3. Land is used to build factories.
    4. The car fumes pollute the air and water is collected in a pot
  5. Match the following
    Terms
    (a) Environment
    (b) Ecosystem
    (c) Biosphere
    Meaning
    (1) The place, people, things and nature that surround any living organism is
    (2) It is a system formed by the interaction of all living organisms with each other and with the physical and chemical factors
    (3) Narrow zone of the earth where land, water and air interact with each other to support life
    1. (a)-(1),(b)-(2),(c)-(3)
    2. (a)-(3),(b)-(1),(c)-(2)
    3. (a)-(2),(b)-(3),(c)-(1)
    4. (a)-(3),(b)-(2),(c)-(1)
  6. Match the following:
    Column AColumn B
    (i) Biosphere(a) Blanket of air which surrounds the Earth
    (ii) Atmosphere(b) Domain of water
    (iii) Hydrosphere(c) Our surroundings
    (iv) Environment(d) Narrow zone where land, water and air interact
  7. Fill in the blanks:

    ________ is the hard top layer of the Earth.

  8. State true or false:

    There could not be an ecosystem of a small pond or lake.

  9. Why is our environment changing?

  10. What are the components of the lithosphere?

  11. Give an account of atmosphere.

  12. What is the lithosphere? What is the significance of the lithosphere in human life?

  13. Give an account of various domains of the environment.

CBSE Worksheet 01
Environment

Solution

  1. (a) All plants, land and human beings do not depend on their immediate surroundings. Explanation: All plants, animals and human beings depend on their immediate surroundings.
  2. (b) Building Explanation: Building is Human-made component of Environment.
  3. (d) Gravitational force Explanation: Gravitational force
  4. (b) They plant more and more tree Explanation: Human beings modify the natural environment like the car fumes pollute the air, water is collected in a pot,food is served in vessels and land is used to build factories.
  5. (a) (a)-(1),(b)-(2),(c)-(3) Explanation: a.The place, people, things and nature that surround any living organism is called environment. It is a combination of natural and human-made phenomena.

    b. Ecosystem is a system formed by the interaction of all living organisms with each other and with the physical and chemical factors of the environment.

    c. Plant and animal kingdom together make biosphere or the living world. It is a narrow zone of the earth where land, water and air interact with each other to support life.

  6. (i)-(d), (ii)-(a), (iii)-(b), (iv)-(c).

  7. Lithosphere

  8. False

  9. Our environment is changing because our needs are increasing day by day. To fulfil these needs we often think about the environment and start modifying it.

  10. Lithosphere is the domain that provides us forests, grasslands for grazing, and land for agriculture and human settlements. It is a source of rich mineral wealth.

  11. A. Atmosphere is the thin layer of air that surrounds the earth. It is made up of various gases such as oxygen, nitrogen, carbon dioxide, dust particles and water vapour.

    B. The gravitational force of the earth holds the atmosphere around it. It protects us from harmful rays and scorching heat of the sun.

    C. The changes in atmosphere produce changes in the weather and climate.

    1. Lithosphere is the solid crust or the hard top layer of the earth.
    2. It is made up of rocks and minerals and covered by a thin layer of soil
    3. The lithosphere is the domain that provides us forests, grasslands for grazing, land for cultivation and human settlements.
    4. It even provides us various minerals.

  13. Various domains of the environment are:

    1. Lithosphere: It is the solid crust or the hard top layer of the earth. It is made up of rocks and minerals and covered by a thin layer of soil. It provides us forests, grasslands and land. It is a source of mineral wealth.
    2. Atmosphere: It is the thin layer of air that surrounds the earth. The gravitational force of the earth holds the atmosphere around it. It protects us from harmful rays and scorching heat of the sun. It consists of various gases, dust and water vapour.
    3. Hydrosphere: It refers to various water bodies such as rivers, lakes, seas, oceans, etc. that exist on the earth.
    4. Biosphere: Biosphere or the living world is comprised of plant and animal kingdom. It is a narrow zone of the earth where land, water and air interact with each other to support life.