Question

5. Mention two ways in which carbon dioxide can be fixed?

Answer 1

Reducing air pollution by using CNN equipped vehicles
Reducing pollution from factories
These are the main things
And one more
By reducing nuclear tests which release large amount of harmful gases

Answer 2

heya user ..

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2 ways are:-

(i) Green plants convert CO2 into glucose in the presence sunlight by the process photosynthesis (ii) Many marine animals use carbonates dissolved in sea-water to make their cells.