What is the relationship between the rock cycle and the plate tectonics?

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?

How do the sperm cells get from the stigma to the ovules?