What did lewis and clark spend most of their time doing?

Clark spent most of his time on the keel boat, charting the course and making maps, while Lewis was often ashore, studying the rock formations, soil, animals, and plants along the way.

on the boat, charting the course and making maps, while Lewis was often ashore, studying the rock formations, soil, animals, and plants along the way.

i think the answer is the one about environmental and social health.

hope this