Which statement describes solstices? >>>>>They occur when the Sun reaches its highest or lowest point in the sky.
They affect the amount of sunlight in the Southern Hemisphere in May.
They contribute to the cycling of winters all year long in the Northern Hemisphere.
They increase the amount of rays from the Sun directly received in the Southern Hemisphere.

b.

Explanation:

I think A. They occur when the Sun reaches its highest or lowest point in the sky.

Explanation:

The summer solstice is when the sun is Highest in the sky, and the Winter solstice is when the sun is lowest in the sky.

It's A

Explanation:

an angle + its complement = 90 degrees

water: cools down faster, heats up faster, idk the last one

land: cools down slower, heats up slower, idk the last one

edit: if anything i answer is incorrect, i'm sorry. double check my work with someone else before using it. you for understanding.