Answer:
A variety of crops provided the necessary food
Explanation:
30. A 31. B 32.B 33.A 34.C (i believe not too sure tho) 35.A
Answer:a climate because it must be comfortable for agriculture as a source of income
Soil the same reason as the first
Water supply we know that water can be a main source of civilization as we see most of our world's civilization are originated around a river
Mineral availability
Yea, I don't see any options