Author Question: According to analysis of air in Greenland and Antarctic ice cores, global temperature has ____. a. ... (Read 139 times)

jhjkgdfhk · **on:** Jul 13, 2018

According to analysis of air in Greenland and Antarctic ice cores, global temperature has ____.
a. increased steadily over the past 400,000 years
b. decreased steadily over the past 400,000 years
c. increased and decreased in cycles over the past 400,000 years
d. remained stable over the past 400,000 years
e. remained stable and then increased during the past 100,000 years

Question 2

The Intergovernmental Panel on Climate Change (IPCC) in 2014 estimated that Earths average surface temperature would likely rise by how much above preindustrial levels by 2050?
a. one-half degree Celsius
b. one degree Celsius
c. two degrees Celsius
d. three degrees Celsius
e. five degrees Celsius