Q. 15.0( 2 Votes )
Which of the following serve as green lungs?
A. Green pigment of the plants
C. Kitchen gardens
D. Green house gases
Reason- Forests serve as green lungs because they release oxygen, which is used by us for respiration.
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Fill in the blanks:
a. The insects, butterflies, honeybees and birds help flowering plants in _________.
b. A forest is a purifier of ________ and _______.
c. Herbs form the ________layer in the forest.
d. The decaying leaves and animal droppings in a forest enrich the _______.NCERT Science
In Fig. 17.15, the artist has forgotten to put the labels and directions on the arrows. Mark the directions on the arrows and label the diagram using the following labels:
clouds, rain, atmosphere, carbon dioxide, oxygen, plants, animals, soil,
roots, water table.
Which of the following statements is not correct?
i. Forests protect the soil from erosion.
ii. Plants and animals in a forest are not dependent on one another.
iii. Forests influence the climate and water cycle.
iv. Soil helps forests to grow and regenerate.NCERT Science
Which of the following is not a forest product?
iii. Sealing wax
iv. KeroseneNCERT Science
Explain the role of forest in maintaining the balance between oxygen and carbon dioxide in the atmosphere.NCERT Science
Explain how forests prevent floods.NCERT Science
List five products we get from forests?NCERT Science