Top Posters
Since Sunday
e
7
t
7
f
6
e
6
c
6
J
6
e
6
j
6
F
6
a
6
u
6
o
6
Home Q & A Board Other Fields Homework Help Trades and Apprenticeship
New Topic  
beunique123! beunique123!
wrote...
Go to Answer
Posts: 318
Rep: 24 0
5 years ago
The air at high altitude has ________.
A) Less than 21% oxygen      B) 21% oxygen
C) Higher pressure      D) Higher density
Read 59 times
2 Replies
Replies
Answer verified by a subject expert
Sean B.Sean B.
wrote...
#1
Posts: 169
Rep: 27 0
5 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

beunique123! Author
wrote...
#2
5 years ago
I wanna give this person a hug.
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1048 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 411
  
 436
  
 209