Given two layers of water with the same salinity, which temperature water will float on top of the other?
A. warmer
B. colder

The answer is A. warmer

Explanation:

The distribution of water bodies in the ocean is established by their density, which is mainly affected by their temperature and salinity. The temperature intervenes in the sense that the higher its temperature, the less dense the water is, so the hot water is on the surface of the ocean, while the colder water will be denser and therefore will be at the bottom.

50% lit on the left side

the sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc.photosyntesis is the process of making food which needs sun,water,nutrients etc.