which events contributed to life evolving on earth? check all that apply.\norganisms began to…

which events contributed to life evolving on earth? check all that apply.\norganisms began to photosynthesize.\nthe surface cooled, and water condensed.\nvolcanoes added carbon dioxide to the atmosphere.\nozone formed and blocked ultraviolet rays from the sun.\ncomets crashed into earth, releasing water.
Answer
Answer:
- 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.
Brief Explanations:
All these events were crucial for life - photosynthesis provided oxygen and energy, surface cooling and water condensation created habitable environments, volcanic activity contributed to the atmosphere composition, ozone formation protected organisms from harmful UV rays, and comets brought water which is essential for life.