(a) Photosynthesis – produces oxygen. (b) Carbon dioxide.
(a) What is the change in state called? (b) State one way to speed up this process. psle 2012 science questions and answers
Water from a pond dries up after a few hot days. (a) Photosynthesis – produces oxygen
(a) Small intestine. (b) Absorbs water and minerals; stores undigested waste. (b) State one way to speed up this process
A pupil wants to test if light is needed for photosynthesis. She uses two potted plants, one in sunlight and one in a dark cupboard. After 48 hours, she tests both leaves for starch.
(a) No sunlight → no chlorophyll produced. (b) Food stored in the seed (cotyledons).
(a) What process do the plants carry out during the day that benefits the fish? (b) What gas do the fish release that is used by the plants?