Question

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

tree rings
tree rings

chemical isotopes in foraminifera shells
chemical isotopes in foraminifera shells

fossilized pollen
fossilized pollen

ice formed thousands of years ago

Answer 1

To determine air temperature at the time it was formed, scientists study:

1. Chemical isotopes in foraminifera shells
2. Ice formed thousands of years ago

These two sources provide valuable information about past temperature conditions. Tree rings and fossilized pollen are more commonly used for other types of environmental reconstructions.