Question

Which physical factor control the opening and closing of stomatal pores?​

Answer 1

Answer:

The swelling of guard cells due to absorption of water causes opening of stomatal pores while shrinking of guard cells closes the pores. Opening and closing of stomata occurs due to turgor changes in guard cells

Answer 2

Answer:

The opening and closing of stomatal pore is controled by guard cells.

And guard cells are ditected to do so by abscics acid which is a plant hormone.

Hope it helps u................