The atmosphere is a dynamic system, meaning it changes continuously. It is affected by A) sunlight
B) carbon dioxide
C) Oxygen
D) human activities
E) all of the above

All of the above

Explanation:

i believe the correct answer from the choices listed above is the first option. the scientists need to look at the   validity of data, claims, hypotheses, and observations before  developing an argument. they base their arguments on facts that are present and they make sure they have proofs. 

explanation:

answer: blah

explanation:

bc blah