How does the stem in meeting the basic needs of a plant

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?

The cluster of developing cells from conception until birth is called an

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt