Question

1. sarah was hiking through the woods in alaska with her boyfriend when she stumbled and fell. as she picked herself up, she noticed an imprint on the rock beneath her. upon closer look, she thought that the imprint looked like a palm leaf. what could she infer based on her observation? the rock was brought here by explorers from a tropical country. the equator was located much further north than it is today. the climate in alaska was much warmer at some point in history. earth was much closer to the sun at some point in its past.

Explanation:

Palm leaves grow in warm - tropical climates. Finding a palm - leaf imprint in Alaska suggests that at some point in history, the climate there was warm enough to support palm growth. There is no evidence to suggest the rock was brought by explorers, and the location of the equator or Earth's distance from the Sun are not the most likely explanations based on this single observation.

Answer:

The climate in Alaska was much warmer at some point in history.