Respuesta :
Scientists study pollen grains in bubble grains to learn how Earth's atmosphere has changed over time (Option D).
What is Palynology?
Palynology is a field science that studies pollen grains and other particles in order to understand past conditions.
- Palynology can help us to understand past climate phenomena such as glaciations.
In conclusion, to learn how Earth's atmosphere has changed over time, scientists study pollen grains in bubble grains (Option D).
Learn more about Palynology here:
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