Question

To investigate whether roots exert a pushing force strong enough to cause water to move up the stems plants,my question is state and explain 4 precautions to be considered during the setup of this experiment

Answer 1

1. The plant should not have leaves. To prevent transpiration from taking place

2. Plant should be well watered. Plants need water

3. Put some Vaseline to seal open gaps. This prevents water evaporation

Unfortunately I don't have the 4th one :/