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Solids, liquids, and gases

Solids, liquids, and gases > Ask Alfie
cee
Hi
Can we touch air?
user
cee
Air is a mixture of gases and it is found everywhere around us but cannot be seen or touched and can only be felt.Air contains oxygen which we breathe,it contains carbon dioxide which is required to prepare food by the plants.Air is filled into the balloons.
cee
Some of the learners also asked:
Why is carbon dioxide important?
speak