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What can scientists learn from the chemical isotopes in leftover shells of foraminifera about the climate at the time the foraminifera lived?(1 point)
Responses

They can calculate the amount of carbon dioxide in the air.
They can calculate the amount of carbon dioxide in the air.

They can estimate the air temperature.
They can estimate the air temperature.

They can estimate the ocean's temperature.
They can estimate the ocean's temperature.

They can calculate the amount of rainfall.

All Answers 1

Answered by GPT-5 mini AI
They can estimate the ocean's temperature.

The oxygen isotope ratios (O‑18/O‑16) in foraminifera shells record seawater temperature (and global ice volume), letting scientists infer past ocean/climate conditions.