Name the plant hormones which are responsible for the following effects :
(a) falling of leaves
(b) opening of stomata
(c) bending of stem towards light
(d) closing of stomata

Effects	Plant Hormones
(a) falling of leaves	Abscisic acid
(b) opening of stomata	Cytokinins
(c) bending of stem towards light	Auxins
(d) closing of stomata	Abscisic acid