Question

A student conducted an experiment to show CO2 is released during respiration. list two precautions that he/she must take for obtaining correct observations.

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Answer 1

1 ) germinating seeds should take and kept moist
2)setup should air tight

Answer 2

Two precautions to be taken are:

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

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