Succession and Extinction Answers

Which substance(s) have been added by humans to the atmosphere to help trigger climate change?

Complete the paragraph to describe how scientists obtain information about past climates. Glaciologists, geochemists, and climatologists study ice layers to learn about past climates. Distinct ice layers are caused by . When studying ice layers, scientists use to measure isotopes of certain gases. These gases reveal the at the time when the ice layers were formed.

An atmospheric scientist used a high-resolution camera to take images of snowflakes during a snowstorm. The scientist observed that the snowflakes were heavily rimed.What can the atmospheric scientist infer about the snowstorm that was happening at that time?