Question

why do we nee whales in oceans and who are the fore father's of sharks in ocean​

Answer 1

Answer:

Explanation:

Whales play a vital role in the marine ecosystem where they help provide at least half of the oxygen you breathe, combat climate change, and sustain fish stocks. ... Different species of whales feed on a range of marine creatures, including krill and fish, in the dark depths of the world's oceans.