Register
Which event in Earth's history most directly allowed life to exist on land?
136k views
1 vote
Which event in Earth's history most directly allowed life to exist on land?

User Eunjoo
by
6.1k points

2 Answers

0 votes

Answer: Single-celled organisms released oxygen into the air when they photosynthesized.

Step-by-step explanation:

I got 100% on the test

User Micessien
by
5.2k points
5 votes

Answer: Single cell organisms absorbed harmful gases from the air when they first formed

Step-by-step explanation:

User Wdtj
by
5.9k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.7m questions

7.4m answers

Other Questions

Which of these structures is primarily responsible for the enzymatic breakdown of a large molecules in the cell?
What are some common signs and symptoms of mental health disorders?
A state of joyful activity in which the subject performs an action effortlessly and skillfully is known as a(n) __________.
!! Earth Science!! Carbon dioxide is normally approximately 2% fraction of the air in the atmosphere. The reason carbon dioxide is considered a pollutant is because... a) Carbon dioxide levels are much
Which statement best describes the life cycle of plants such as ferns? a. Different plants have a different number of phases in their life cycle. b. Plants have a single life cycle and are entirely haploid.
Link Copied!