Answer:
Scarp retreat is a geological process through which the location of an escarpment changes over time.
Westward expansion meant that the US acquired ever increasing amounts of land, and needed people, farmers, to settle there so it could maintained without a huge military presence
Deforestation hope it helps.
The general flow of air from the the poles to the equator occurs in the stratosphere.
Answer:
False
Explanation: Fish can't swim up the stream. Pond plants & animals would start to live there instead of stream plants & animals.
