Answer:
C. Hot and Humid
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Radiometric dating should be what they use
There are four settled societies that each developed agriculture independently along major rivers that are traditionally considered the early river valley civilizations. The are the Mesopotamian civilizations, the Nile River civilizations, the Indus River civilizations, and the Yellow and Yangtze River civilizations.
<span>centeral south america or in africa</span>
Rain that has become frozen into small ice pellets is called freezing rain.
<span>Ice pellets are rain drops that has frozen before they hit the ground. While passing through sub-freezing layer that is hundred of meters above the ground, rain freezes and forms small ice pellets.
Hail stones, on the other hand, are normally much larger than sleet pellets and can cause damage.</span>
