River valley trade made them key economic areas.
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Answer:
Give people water
Explanation:
If they have it there will be no demand for it
A. high wages
Are you doing intern assessment?
Answer:Weather forecasting is the application of science and technology to predict the conditions of the atmosphere for a given location and time. ... Hence, forecasts become less accurate as the difference between current time and the time for which the forecast is being made (the range of the forecast) increases.
Explanation:brainliest plz