Which arrows indicate weathering and erosion?
sedimentary rocks

Melting is indicated by red arrows, cooling is indicated by blue arrows, and weathering and erosion is indicated by green arrows.

Explanation:

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d. stage 4

explanation:

the existence of some kind of demographic transition is widely accepted in the social sciences because of the well-established historical correlation linking dropping fertility to social and economic development.[1] scholars debate whether industrialization and higher incomes lead to lower population, or whether lower populations lead to industrialization and higher incomes. scholars also debate to what extent various proposed and sometimes inter-related factors such as higher per capita income,lower mortality, old-age security, and rise of demand for human capital are involved.[2]

people cluster in places that have rich soil, fresh water, and mild climates.

explanation: