Question
Write any two applications of Archimedes' principle.
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What is soil erosion? Explain means of preventing it.
Describe importance of water for the living organisms.
Write down disadvantages of crop rotation.
List any two differences between infectious and noninfectious diseases. Write any one example of each disease.
If the work done by a force in moving an object through a distance of 20cm is 24.2J, what is the magnitude of the force?