Photosynthesis in the earths forests produces about half of the oxygen in the atmosphere. Photsynthesis in the earths oceans produces the other half of the oxygen in the atmposphere. Why do you thinkso much photosynthesis occurs in the oceans?

the correct answer is b

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers