Which of the following gases was most likely present in Earth's earliest atmosphere?

Question

a. nitrogen
b.hydrogen
c.argon
d.oxygen

Help me please!

Answer 1

Since this is not my area of expertise, I searched Google under the key words "earth's early atmosphere gases percentages" to get these possible sources:

https://www.google.com/search?client=safari&rls=en&ei=hreaW5DbN9mT0PEP2_CU-Aw&q=earth%27s+early+atmosphere+gases+percentages&oq=Earth%27s+earliest+atmosphere&gs_l=psy-ab.1.0.0i71l8.0.0..154980...0.0..0.0.0.......0......gws-wiz.mnPvqDY5A4M

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.

http://www.hackcollege.com/blog/2011/11/23/infographic-get-more-out-of-google.html

Answer 2

i need the answers'

Answer 3

r u in connections acedemy?

Answer 4

We all are. I swear. I'm in 8th and I look for some helpful links or something and get the answers, in exact orders. :/ it's really not what I want.

Answer 5

I NEED HELP SOMEONE PLEASE

Answer 6

hydrogen

Answer 7

Ya i am in 8th grade and in connexes too!

Answer 8

Here et me do the test and give you the answers! Dont worry they will be right trust me!! Oh and by the way I am a girl!!

Answer 9

1: B
2:B
3:A
4:B
5:B
6:True
7:False
8:Essay wright in your own words.
9:Essay (AGAIN)
10: Another ESSAY!

You will get 100% on the Early earth quiz I promise!! I did it and got 100% Thankyou!!

Answer 10

For Scince!

Answer 11

Yo thank you fox girl lol

Answer 12

is foxgirl right?

Answer 13

Foxgirl is correct thankyou!

Answer 14

Why tf did they feel 3 written questions were needed

Answer 15

For number 8 what I did was google the definition of mold and cast and then said they were related because you have to have a mold to make a cast!

Answer 16

I just still need help with the essay parts

Answer 17

1.b
2.b
3.a
4.b
5.b
6. true
7.true
8,9, and 10 : do it by yourself

Answer 18

1. b
2. b
3. a
4. b
5. b
6. true
7. false
8. your choice

Answer 19

pog pog pog pggogogog

Answer 20

Hi, I'm in connexus and the answers are correct Thank you!

Answer 21

b
b
a
b
b
true
false
8,9 and 10 YOU ARE GONE TO HAVE TO DO BY YOURSELF BUT YOU GOT THIS :)

Answer 22

NO WORRIES

Answer 23

u r da best fox gurl!
b
b
a
b
b
true
false
8, 9 10, up to you, FOR THE OTHER AWNSERS I GOT 100% I SWEAR!
U WELCOME!

Answer 24

Question 8: How is a mold and cast related (My answer):
The mold and cast are related because the mold is the object that makes the shape of the cast and they both hold shape or are part of an organism (If anyone needs me to explain how they're part of an organism lmk)

Answer 25

Question 9: If the following graph represents the decay of strontium-90in an igneous rock what event occurred at 0 years on the horizontal axis?
The event that occurred was metamorphic of igneous rock aka formation of igneous rocks from melted magma

Answer 26

Question 10: Suppose you found a fossil of a clamshell, what can you conclude about the once-living organism and how it became a fossil? (My answer):
since the fossil is a clam shell it must have lived in water so after it died over time the clam shell got buried in sediment and became a fossil
hope this helps, not saying these are right, this is just what I concluded

Answer 27

From your daily child needing to check answers thanks this was very pog