Some of the best information on climate history over the last several million years is based on the study of:
A)amino acids.
B)foraminifera.
C)radioisotopes.
D)dendrochronology.

Question

Quizplus · Accepted Answer

Foraminifera, which are single-celled marine organisms with calcium carbonate shells, provide valuable information on past climates through the isotopic composition of their shells. These isotopes can reveal information about ocean temperatures and ice volume, among other variables.

Dendrochronology, the study of tree rings, provides detailed records of past climate variability, but is limited to the last few thousand years.

Amino acids can be used to date fossils, but do not provide information on past climates.

Radioisotopes also have applications in climate research, but their use is more limited and specific than foraminifera.

Some of the Best Information on Climate History Over the Last