What gas do plants absorb from the air?
What is the process by which plants make their food?
What is the green pigment in leaves called?
Which of these is a climbing plant?
What do you call the outer covering of a seed?
What is the main source of energy for plants?
Which part of the cactus stores water?
What is the function of stomata in leaves?
Which is the male part of a flower?
Which of these is a herb?
