Question

A student has set up an appartus to show that''co2 is released during respiration ".After about 1 hour he observes no change in the water level in the delivery tube.write two possible reasons for the failure of the experiment ​

Answer 1

seeds aren't wet.

there is no air tight appratus.

Answer 2

1)the connection is not airtight.

2)koh solution is not freshly preparedd.

3)germinating , fresh seeds must not have been used.