Question

Which of the following aspects of past climate can isotopes measured in speleothems most directly tell scientists about? a. The concentration of carbon dioxide in the atmosphere b. The past albedo of a region c. The source region of water that contributed to rainfall in a region d. The average global sea level

Answer 1

Isotopes measured in speleothems can most directly tell scientists about:

c. The source region of water that contributed to rainfall in a region

Step-by-step explanation:

Speleothems, such as stalagmites and stalactites, form in caves from mineral-rich water dripping or flowing. Isotopic analysis of oxygen and hydrogen in these speleothems can provide insights into the source region of the water that contributed to rainfall in a specific region, which can in turn provide information about past climate conditions and precipitation patterns.