The climatologist can find an air sample in bubbles in ice core samples. Ice cores, which are drilled from ice sheets and glaciers, trap air bubbles that preserve samples of the atmosphere from thousands of years ago, allowing scientists to analyze the composition of the air at different historical periods. The other options, such as tree rings, rock sediments, and alkenone molecule traces, provide valuable ecological and climatic information, but they do not contain direct samples of ancient air.
A climatologist wants to gather data about the composition of the air 35,000 years ago. Where might he find an air sample?
bubbles in ice core samples
tree rings
rock sediments
alkennone molecule traces from phytoplankton
1 answer