Question

to demonstrate the carbon dioxide is present in Exhaled in air step by step activity aim, material required, observation, procedure​

Answer 1

Answer:

1 take a test tube and add some lime water in test tube.

2 take a funnel and dip in the test tube containing lime water.

3 exhale air in test tube .

4 vou will observe that lime water turns milky.

this tell us presence of co2