The ocean ecosystems affect the biosphere by .
I) producing a substantial amount of the biosphere's oxygen II) adding carbon dioxide to the atmosphere III) being the source of most of Earth's rainfall IV) regulating the pH of freshwater biomes and terrestrial groundwater
A. only I and III B. only II and IV C. only I, II, and IV D. only I, II, and III

The ocean ecosystems affect the biosphere by producing a substantial amount of the biosphere's oxygen and by being the source of most of Earth's rainfall.

What is biosphere?

The areas of Earth where life is present are referred to as the biosphere. The biosphere includes everything, from the furthest-reaching tree roots to the darkest ocean depths, verdant rain forests, and loftiest mountain peaks.

Over time, the atmosphere transformed into a mixture of gases that included oxygen and could support new kinds of life.
More oxygen entering the biosphere allowed for the evolution of more sophisticated life forms. Plant species proliferated in great numbers, as did other photosynthetic organisms.
Creatures have evolved to eat both plants and other animals. Bacteria and other organisms have developed to help dead plants and animals decompose, or break down.
The oceans are mostly responsible for producing rain on our planet. Ocean water exposed to sun radiation evaporates and turns into water vapor, which is why this happens.
This vapor is absorbed by these clouds, which become overburdened and start to precipitate. Precipitation is essential for human activities like agriculture in addition to ensuring the smooth operation of the hydrological cycle.

Learn more about the biosphere with the help of the given link:

https://brainly.com/question/15083566

#SPJ4