Rainwater and rivers/streams
Grain farming is done for economic activity and this makes it commercial. It is highly specialized and mechanised. The yield per acre is low so the farms are big. The yield is high per man so little manpower is needed for production. Grain farming is subject to market conditions like climate.
False. According to the U.S constitution, President Lincoln couldn't abolish slavery.
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Answer:
A.
Explanation:
high mountains and plateaus
