Why Are Ice Cores Useful in Tracking Carbon Dioxide Levels

question 14

Multiple Choice

Why are ice cores useful in tracking carbon dioxide levels?

• A) Ratios of isotopes can be compared.
• B) They contain sediment from volcanoes.
• C) Air bubbles in the ice contain gases that can be measured.
• D) Water can be analyzed for carbon dioxide.
• E) They are easy to obtain.

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Definitions:

Process Costing

An accounting methodology used to allocate costs to units of product in processes where the products are indistinguishable from each other.