Study Materials

NCERT Solutions for Class 7th Science


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Chapter 17. Forests: Our Lifeline

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Chapter Review:

  • The branches of the tall trees look like a roof over the other plants in the forest that is called a canopy.
  • Branchy part of a tree above the stem is known as the crown of the tree.
  • The dead plant and animal tissues and convert them into a dark coloured substance called humus.
  • The micro-organisms which convert the dead plants and animals to humus are known as decomposers.
  • Forests protect the soil from erosion.
  • The various components of the forest are interdependent on one
  • Different layers of vegetation provide food and shelter for animals,
    birds and insects.
  • Soil helps forests to grow and regenerate.


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Chapter Contents: