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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.
Answer:
8. B. we see comets when they approach the sun.
9. A. the sun's surface.
Answer: Indonesia
Explanation:
Archipelago- a group of many islands
Indonesia is the largest archipelago in the world
There are total number of 17,508 islands.
