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Use your brain power! Which soil is suit...

Use your brain power!Which soil is suitable for cultivation? why?

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The magnetic lines of force of the earth's magnet are tangential to the ground at both the poles of the earth. Therefore (near the geographic north pole of the earth) the magnetic needle that can freely rotate, would settle nearly vertical that means it would settle nearly perpendicular to the ground. It's north pole would be towards the ground and south pole would be in the upward direction.
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