56 Comments

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Michael Ahern Jr.
New Smyrna Beach, FL · a month ago

B

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Nilda Berrios
York, PA · a month ago

c

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Don Umbarger
Folsom, CA · a month ago

C

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Allen McCord
Tobyhanna, PA · a month ago

Nitrogen

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Cryptonian
Riverside, CA · a month ago

Earth’s atmosphere is about 78% nitrogen, 21% oxygen, and ~0.04% carbon dioxide.

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TexasRepresent
Des Moines, WA · 2 months ago

c

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Kevin Mercer
Homerville, GA · 2 months ago

Nitrogen, foks

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Adam C
2 months ago

carbon dioxide

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Sean Betts
Conover, NC · 2 months ago

A

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Kinkyha1990
2 months ago

oxygen

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Jesse Sanchez
Houston, TX · 2 months ago

Farts

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Debbie Newell-Payton
Philadelphia, PA · 2 months ago

B

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Philip Rodriguez
Plainview, TX · 2 months ago

b

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Jose Luis Santos
Merced, CA · 2 months ago

oxygen

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Thee greatest
Lansing, IL · 2 months ago

A

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Curtis Ezell
Crossville, TN · 2 months ago

Trees takes in carbon dioxide and gives off Oxygen

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Craig Hughes
Jasper, GA · 2 months ago

which gas is most prevalent in the atmosphere

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Matthew Hicks
Austin, TX · 2 months ago

B

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Millard Tippens
Dallas, TX · 2 months ago

A

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P Diddy
Ahoskie, NC · 2 months ago

Nitrogen

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Carmen Sanchez
Modesto, CA · 2 months ago

C

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Denice S
Toledo, OH · 2 months ago

it's obvious it's oxygen because we all need it

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Keven Smith
Detroit, MI · 2 months ago

c

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Fred King
Virginia Beach, VA · 2 months ago

b

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Verifedkid☑️
Florissant, MO · 2 months ago

Nitrogen

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Donald Waters
Stone Mountain, GA · 2 months ago

oxygen

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Edwin rodriguez
2 months ago

nitrogen

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GAnn
New York, NY · 2 months ago

Nitrogen

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Doug Johnson
Martinez, GA · 2 months ago

all 3

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Stephan Garnett
Tappahannock, VA · 2 months ago

A

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cookiemonster
Lexington, SC · 2 months ago

C

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Dee Brown
Miami, FL · 2 months ago

B is the one

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Robert Price
Windsor, NC · 2 months ago

c

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The Griff
Edgewater, FL · 2 months ago

C

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Jerry Stevens
LaFayette, GA · 2 months ago

A

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John Davis
Lexington Park, MD · 2 months ago

c nitrogen makes up 78% of the atmosphere

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Kay Goetz
2 months ago

c

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BDub
2 months ago

it's c

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Curtis Ezell
Crossville, TN · 2 months ago

Pollution

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Scottie
Beckley, WV · 2 months ago

C

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Tha Ginge
Flint, MI · 2 months ago

nitrogen

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Danny Crabtree
Hardyville, KY · 3 months ago

C

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Scott correia
Westport, MA · 2 months ago

I would hope it's oxygen or I wouldn't be breathing

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Ronald Lott
Houston, TX · 2 months ago

Nitrogen