Question

what is the difference between space and sky ?​

Answer 1

1. sky is limited
2. atmosphere is included in sky which means sky contains oxygen
3. also water vapours are present in air
4. different gases like CO2, Nitrogen, etc. are present

1. space is unlimited and is expanding with time
2. there is no oxygen or water (in the form of vapours) content in it
3. different gases are not present

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