Drag each item to indicate what scientists can learn about by studying it. Each term may be used more than once. (2 points)
Ocean temperature
Carbon dioxide levels
Kinds of plants
Rainfall
• chemical isotopes in foraminifera
:: fossilized pollen grains
:: tree rings
Ice
- Ocean temperature: ice, chemical isotopes in foraminifera
- Carbon dioxide levels: fossilized pollen grains, tree rings
- Kinds of plants: fossilized pollen grains
- Rainfall: tree rings