An canyon is formed by rivers carving it out long ago. GRAND CANYON IS ONE!
Pangea is the name of the giant landmass that once contained all of the continents.
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Answer:
areas with mountains
areas with high elevation
Answer:
It could technically be either. The majority of coal deposits
appear to be biotic, though there are some geochemists who believe
that abiotic coal deposits might exist deep in the crust.
Explanation:
To extend those records, paleoclimatologists look for clues in Earth's natural environmental records. Clues about the past climate are buried in sediments at the bottom of the oceans, locked away in coral reefs, frozen in glaciers and ice caps, and preserved in the rings of trees.