Question

√√∛∛∛Which events contributed to life evolving on Earth? Check all that apply.

Organisms began to photosynthesize.
The surface cooled, and water condensed.
Volcanoes added carbon dioxide to the atmosphere.
Ozone formed and blocked ultraviolet rays from the Sun.
Comets crashed into Earth, releasing water.

Answer 1

The following events contributed to life evolving on Earth.

• Organisms began to photosynthesize
• The surface cooled, and water condensed
• Ozone formed and blocked ultraviolet rays from the Sun.

Option: A, B and D

Explanation:

When life came into existence on earth surface is a big question. There are so many evidences and experiments also took place to justify the evolution of living beings on the earth's surface.

Firstly after came into being plants start doing photosynthesis (intake of $CO_2$ and production of $O_2$), The surface cooled after being detached from a large hot ring of fire. Water start condensing, transformed into solid from liquid. Comets also crashed into earth and start releasing water.

Answer 2

Answer:

1,2,4

Explanation: