Question

Which do scientists study to determine air temperature at the time it was formed?(1 point)
Responses

tree rings
tree rings

fossilized pollen
fossilized pollen

fossilized shells
fossilized shells

chemical isotopes in foraminifera shells
chemical isotopes in foraminifera shells
Question 2
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 calculate the amount of rainfall.
They can calculate the amount of rainfall.

They can estimate the ocean's temperature.
They can estimate the ocean's temperature.
Question 3
What do Argo floats measure in the world's ocean currents? Select the two correct answers.(1 point)
Responses

salinity
salinity

temperature
temperature

carbon dioxide
carbon dioxide

rainfall

Answer 1

For your questions:

**Question 1**: Which do scientists study to determine air temperature at the time it was formed?
- **Response**: chemical isotopes in foraminifera shells

**Question 2**: What can scientists learn from the chemical isotopes in leftover shells of foraminifera about the climate at the time the foraminifera lived?
- **Response**: They can estimate the ocean's temperature.

**Question 3**: What do Argo floats measure in the world's ocean currents? Select the two correct answers.
- **Responses**:
- salinity
- temperature