True or false solar power take power from wind and uses it to make electricity

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?

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

Which substance has non polar covalent bonds