Scientists attribute soil formation to the following factors: Parent material, climate, biota (organisms), topography and time. ... The physical, chemical and biological properties of the different soils can have a big effect on how to best manage them.
Answer:
Generally they are divided into the following categories: small towns-up to 10,000 inhabitants, 10,000-20,000, and 20,000-50,000; medium-size cities, 50,000–100,000 inhabitants; and large cities- 100,000-300,000 and 300,000-1,000,000 inhabitants.
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Yes it is a reliable source
Explanation: it shows the earth all in one. Makes it easier to study
