Question

Extremely small pollen grains in water are viewed through a microscope. The grains are seen to move continually and randomly. What is the reason for this random movement?
A The grains are moved by randomly moving water molecules.
B The grains are moved by random convection currents in the water.
C The grains are moved by random rays of light reflecting off them.
D The grains are moved by the random motion of their own atoms.

Answer 1

probably a will be the ans

Answer 2

3rd Part is your answer

Hope it help u