× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
t
7
m
6
k
6
F
5
j
5
t
5
j
5
G
5
f
5
a
5
d
5
c
5
Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
New Topic  
JuliaH JuliaH
wrote...
Posts: 61
Rep: 0 0
11 years ago
I wanted to do some research on how plants act in different atmospheric conditions and wanted to try out the three different things which I thought would be a good basis. I wanted to do atmospheric conditions during the age of the dinosaurs (CO2 percentage, O2 percentage etc.) and the same for today and possible what it would be in the future. Can anyone tell me atmospheric conditions and gas percentages in the three time periods (I suppose past, present, and possibly future) please?
Read 323 times
1 Reply

Related Topics

Replies
wrote...
#1
11 years ago
Nasa and NOAA would have that information

ancient atmosphere can be determined by sep ice cores to a few hundred thousand years and earth rock cores for millions of years

atomic studies of tiny tiny amounts of trapped atoms can be counted and related to conditions at the time

any to the Global warming studies have that information the charts are presented as CO2 concentrations O2 isotopes and estimated temperatures matched to geological ice age evidence
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  736 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 1178
  
 212
  
 253