The most useful of the methods listed below for determining paleotemperatures one billion years ago is:
A) measuring oxygen isotope ratios in Greenland ice.
B) studying rocks and fossils.
C) studying historical records.
D) counting tree rings.

Question

Quizplus · Accepted Answer

Studying rocks and fossils would be the most useful method for determining paleotemperatures one billion years ago. This is because rocks and fossils can provide information on the past temperature and climate conditions through various indicators such as the presence of certain minerals or the distribution of plant and animal species. Oxygen isotope ratios in Greenland ice, counting tree rings, and studying historical records are not as useful in determining paleotemperatures one billion years ago, as they either do not provide data from such a distant timeframe or do not give direct indications of past temperatures.

The Most Useful of the Methods Listed Below for Determining