Question and answer
How much of Earth's atmosphere is made up of nitrogen and oxygen? A. 100 percent B. Between 25 and 75 percent C. Close to 99 percent D. Less than 1 percent
Close to 99 percent of Earth's atmosphere is made up of nitrogen and oxygen.
g
Question
Asked 12/22/2015 3:32:41 PM
Updated 12/23/2015 9:52:29 AM
0 Answers/Comments
This answer has been confirmed as correct and helpful.
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
Unlike mammals, fish A. can take in oxygen from the air. B. utilize gills for gas exchange. C. need oxygen to survive. D. release carbon dioxide.
Question
Not Answered
Updated 8/29/2016 5:05:49 AM
1 Answer/Comment
Unlike mammals, fish utilize gills for gas exchange.
Added 8/29/2016 5:05:49 AM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [8/29/2016 5:24:01 AM]
Which group of chordates does not possess true backbones? A. Lampreys B. Crocodilians C. Birds D. Frogs and toads
Question
Not Answered
Updated 2/9/2016 1:50:57 AM
1 Answer/Comment
Lampreys: group of chordates that does not possess true backbones.
Added 2/9/2016 1:50:57 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [2/9/2016 2:15:30 AM]
Which of the following accurately describes the angiosperm plant life cycle? A. The anther produces eggs. B. The ovule develops into an anther. C. The ovary is haploid. D. The embryo develops into a seedling.
Question
Updated 3/13/2016 9:43:21 AM
1 Answer/Comment
The embryo develops into a seedling accurately describes the angiosperm plant life cycle.
Added 3/13/2016 9:43:21 AM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [3/13/2016 6:10:45 PM]
Like chordates, all invertebrates have A. tails. B. backbones. C. eukaryotic cells. D. pharyngeal pouches.
Question
Updated 8/4/2016 3:59:15 AM
1 Answer/Comment
Like chordates, all invertebrates have tails.
Added 8/4/2016 3:59:15 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [8/4/2016 9:07:41 AM]
Which of the following is not a major function of the roots? A. Photosynthesis B. Providing a membrane in which osmosis moves water across C. Uptake of nutrients D. Development of root pressure that drives movement
Question
Not Answered
Updated 12/16/2015 12:02:26 AM
1 Answer/Comment
Photosynthesis is not a major function of the roots.
Added 12/16/2015 12:02:26 AM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [12/16/2015 2:35:49 AM]
33,119,790
questions answered
Popular Conversations
-4(2+8)
Weegy: -4|-4| User: 2(9-3) Weegy: 12*9-3 = 108-3 = 105.
1/13/2021 1:29:14 AM| 4 Answers
-7 N = 20
Weegy: -7 + N = 20 User: y - 12 = -10 Weegy: x + 5 = 2x User: y - 12 = -10 Weegy: x + 5 = 2x User: y + 1.05 = ...
1/15/2021 5:41:15 AM| 4 Answers
Which of the following measures tells something about the ...
Weegy: Data is a set of values of qualitative or quantitative variables; restated, data are individual pieces of ...
1/12/2021 3:12:14 PM| 3 Answers
Which phrase does not describe a mineral? A. Crystal structure ...
Weegy: The phrase which do not describe a mineral is organic solid. User: minerals containing iron are attracted bt ...
1/18/2021 8:40:01 AM| 3 Answers
If you blank to visit your grandmother, you should go now; visiting ...
Weegy: If you INTEND to visit your grandmother,you should go now,visiting hours will be ending soon. User: An essay ...
1/18/2021 6:25:02 PM| 3 Answers
Solve the following system of equations. 2x + y = 3 x = 2y - 1
Weegy: 2x + y = 3 User: Solve the following system of equations. 3x + 2y - 5 = 0 x = y + 10 Weegy: The solution ...
1/19/2021 9:23:23 AM| 3 Answers
GET
Answers.
GET THE APP.
weegy*
*
Get answers from Weegy and a team of really smart live experts.
S
L
P
R
P
R
Points 1005 [Total 4858] Ratings 0 Comments 895 Invitations 11 Offline
S
L
L
1
P
1
L
P
Points 717 [Total 11737] Ratings 5 Comments 667 Invitations 0 Offline
S
L
1
Points 502 [Total 2934] Ratings 1 Comments 482 Invitations 1 Offline
S
L
Points 497 [Total 3816] Ratings 0 Comments 497 Invitations 0 Offline
S
L
Points 316 [Total 1130] Ratings 0 Comments 316 Invitations 0 Offline
S
R
L
Points 249 [Total 866] Ratings 0 Comments 249 Invitations 0 Offline
S
L
Points 202 [Total 202] Ratings 0 Comments 202 Invitations 0 Offline
S
L
1
1
1
1
1
1
1
1
1
1
1
1
Points 173 [Total 2719] Ratings 16 Comments 13 Invitations 0 Offline
S
L
Points 162 [Total 162] Ratings 0 Comments 162 Invitations 0 Offline
S
L
P
P
P
1
P
L
1
Points 126 [Total 9397] Ratings 1 Comments 116 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.