Question 7 (b)
Fill in the blank:
(b) A forest is a purifier of and .

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Solution

(b) A forest is a purifier of air and water.

Plants absorb carbon dioxide present in the air, which is then processed into oxygen through photosynthesis. This oxygen is used for the process of respiration in animals. Trees also help in purifying the air by absorbing harmful greenhouse gases. The roots of the plants filter out the harmful substances present in the water as it seeps into the ground to form groundwater.

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Fill in the blank:

(a) The insects, butterflies, honeybees and birds help flowering plants in _______.

(b) A forest is a purifier of _______ and ________.

(d) The decaying leaves and animal droppings in a forest enrich the _______.

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 ___________.

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Question 7 (b) Fill in the blank: (b) A forest is a purifier of __ and __.

Question 7 (b)
Fill in the blank:
(b) A forest is a purifier of and .