Question 7 of 25
2 Points
The graph shows ice core data that illustrate historical trends in the amount
of carbon dioxide in Earth's atmosphere. Scientists attribute global warming
to recent increases in human activities that produce carbon dioxide. How
could scientists use these data to evaluate whether a new solution to the
problem of global warming is working?
Atmospheric Carbon Dioxide
from Low Dolce Cores
Atmosphere Com)
1000
1200
1400 1600
Year (AD)
1800
O
O
A. By comparing historical atmospheric CO2 levels with data from
another planet
B. By gathering more data about historic atmospheric CO2 levels
using a different technique
C. By gathering new data about historic atmospheric Co2 levels
using new ice cores
O
O
D. By comparing modern atmospheric co, levels with historical data
in the graph