Question

Take an empty jam jar. Put a handful of soil in it. Pour 400 ml of water and stir the mixture well. Leave it aside for a couple of days and observe carefully the different layers of soil.
Observations: note down your observations in the following format: 1. How many layers of soil have you observed? 2. Have you observed any dead leaves or organisms floating on water. 3. Go to a construction site, and try to relate different layers of soil with the layers formed in the jam jar.

Answer 1

Answer:

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Explanation:

ok

Answer 2

Explanation:

a direction which is perpendicular to the plane of the surface is said to be normal. the force that a solid surface experts on any other in the normal direction is called the normal force