The reason for language diversion is the isolation of the people who speak the same language, but due to diversion and lesser contact between these people, now the language is used only in the dialects.
Answer:
Rocks
Explanation:
Rocks because those 4 planets Mercury, Venus, Earth, and Mars are rocky planets. Also, this is a tip, anytime you are forgetting the order of the planets, use this term:
My
Very
Excellent
Mother
Just
Served
Us
Nachos
It will help you remember the actual order which is
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
They used railway roads and canal access
The burgess and Hoyt models both try to understand urban land use. Both models have the same assumptions (e.g all land is flat, the importance of centrality, and etc).