Extremely small pollen grains are suspended in water. A bright light is directed from the side. When viewed through a microscope, tiny specks of light are observed moving in a random, jerky way. What are the moving specks of light?
- Apollen grains being hit by other pollen grains
- Bpollen grains being hit by water molecules
- Cwater molecules being hit by other water molecules
- Dwater molecules being hit by pollen grains