Question

Give scientific reason for the following.

1. Snail is capable of moving on variety of surfaces.

2. A freely suspended bar magnet always aligns in north-south direction.​

Answer 1

a) Thanks to the fluid they secrete, snails can move on all types of surfaces, so it is common to see them on walls, ceilings, rocks, plant leaves, mosses and cracks in any area. Many prefer to stay close to the rocks, ditches, and plants to have a place to protect themselves from their natural predators.

b) A freely suspended magnet always rests in the north-south direction because the magnetic south pole of the earth lies in the geographic north direction and the magnetic north pole of the earth lies in the geographical south direction.${\:}$

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Answer 2

Answer:

a) Thanks to the fluid they secrete, snails can move on all types of surfaces, so it is common to see them on walls, ceilings, rocks, plant leaves, mosses and cracks in any area. Many prefer to stay close to the rocks, ditches, and plants to have a place to protect themselves from their natural predators.

a) Thanks to the fluid they secrete, snails can move on all types of surfaces, so it is common to see them on walls, ceilings, rocks, plant leaves, mosses and cracks in any area. Many prefer to stay close to the rocks, ditches, and plants to have a place to protect themselves from their natural predators.b) A freely suspended magnet always rests in the north-south direction because the magnetic south pole of the earth lies in the geographic north direction and the magnetic north pole of the earth lies in the geographical south direction.{\:}