Answer:
Oceans are least productive because
(i) There is insufficient radiation as
sunlight decreases with the increasing depth of the ocean.
(ii) Oceans are nitrogen
deficient which is an important nutrient for plants.
(ii) Conditions of high salinity
which is not favorable for all plants.
(iii) there is no substratum to
support plants.
You need to login to perform this action.
You will be redirected in
3 sec
