Question

What portion of the ocean contains the highest biodiversity and the greatest productivity?

Answer 1

Answer:The continental shelf.

Explanation:

Continental shelf is the surbmarged part of a Continient in swallow ocean.

The richness in biodervasity is due to

1.shallowness of this region This characteristics permit easy penetration of sunlight for phytoplanktons and other primary producers t o supply enough food materials in thr food chains.

2.it is also the site for abundant oxygen from photolysis of water