Question

Write if the following statements are True or False
1. Lightning is not seen everyday during the raining season
2. A chemical reaction occurs between hydrogen and oxygen in
the air which comes down to the earth thus improving the
fertility of soil
The ozone gas protects us from the infra rays from the sun,​

Answer 1

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1. True
2. True
3. True

Answer 2

What will be the ratio =

4:7::8:?