Question

why is moist cotton wool used in the experiment

Answer 1

Answer:

yes

Explanation:

moist cotton is used in many experiments because the living sample that you take eg. bean seed, bactetia etc .they all need watet to survive. And mostly we study living cells in bio

Answer 2

Answer:

Yes it is necessary.

Explanation:

This can give oxygen out for the plants to carry our respiration for survivial