Register
Which of the following gases were present in the atmosphere of 4 billion years ago? A) water B) methane C) ammonia D) all of the above
117k views
2 votes
Which of the following gases were present in the atmosphere of 4 billion years ago?

A) water
B) methane
C) ammonia
D) all of the above

User JasonWyatt
by
5.3k points

1 Answer

7 votes

Answer: D) all of the above

User Lasar
by
5.7k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.9m questions

7.7m answers

Other Questions

What are some common signs and symptoms of mental health disorders?
Which statement BEST describes the relationship between adenosine diphosphate (ADP) and adenosine triphosphate (ATP)? A. With an input of energy, ADP rearranges to become ATP. B. Without any energy change,
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!