One thing that made them unique is their good military and fighting skills.
Answer: B.
Explanation: They had religious beliefs and sometimes spread them through their writings.
Explanation:
Weathering breaks down rocks; erosion moves them.
Weathering has to do with air; erosion has to do with rocks.
Weathering occurs only in winter; erosion occurs year-round.
Weathering can be chemical or physical; erosion is only chemical.