subject
Mathematics, 09.02.2021 03:40 timozy95

Before there was any life on Earth, which gas was absent from the ancient atmosphere? A. nitrogen
B. ammonia
C. oxygen
D. methane

please answer lol

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 17:00
Write a story that matches with the expression 42x-5 pls hurry
Answers: 1
question
Mathematics, 21.06.2019 18:00
Place the following steps in order to complete the square and solve the quadratic equation,
Answers: 1
question
Mathematics, 21.06.2019 23:30
Find the arc length of the semicircle. 7the grade
Answers: 1
question
Mathematics, 22.06.2019 00:20
Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6
Answers: 2
You know the right answer?
Before there was any life on Earth, which gas was absent from the ancient atmosphere? A. nitrogen
Questions
question
Mathematics, 18.03.2021 02:50
question
Biology, 18.03.2021 02:50