HELP Why is sunlight such an important factor in determining ocean zones?
because sunlight determines temperature, which, in turn, determines the types of life that exist in different zones
because sunlight determines how well scientists can see what is in the oceans
because sunlight drives photosynthesis, which is the key ingredient for plant life
none of the above

The reason why there are so many various life in this zone is because of its access to sunlight. Direct sunlight causes photosynthesis, which allows many opportunities for life. In this zone, the water pressure is so high that the marine life that live here need to be able to withstand the pressure.

Explanation:

river is shown in this type of map

reflecting point a across the origin negates both of its coordinates.

b = (5, -4)