Really need plz
light penetrates the ocean only to which of the following depths?

20 m

200 m

2,000 m

500 m

and if you answer plz with like 3-4 more plz

Such a miniscule amount of light penetrates beyond a depth of 200 meters that photosynthesis is no longer possible. 

By water evaporation from the leaves is created a negative pressure at the top of the tree that promotes the ascension  of the water through channels that are called xylem. there are also two molecule forces that are involved: the intra-water molecules cohesion (water molecules stick to each other) and the adhesion when the water molecules stick to the channels they are running in. this is what enables water to go from the roots to the top of a tall tree.

  like australopithecus afarensis; probably the direct ancestor of this group. africa: 5.8 to 4.4 million years ago.