Question

A student conducted an experiment to show co2 is released during respiration. List two precautions that he must take to obtain correct observations

Answer 1

Answer:

1. wet seeds are used.

2.kcl should be used to absorb co2

3. it should be air tight

4. tube must be dipped in water at some extend

Answer 2

Two precautions to be taken are:

(i) Germinating seeds (living) should be used.

(ii) The experiment set up must be air-tight.