Question

a car moves 100m due east and then 25m due west.a.what is the distance covered by the car.b.what is the displacement?

Answer 1

distance mean total length covered by
particle .so, distance =100m+25m=125m

but displacement means shortest length between starting and finishing point.
hence
displacement =100+(-25)=100-25=75m
because car first moves forward 100m then moves backward 25m hence
separation between initial and final point
is 100-25=75m.

Answer 2

Hey mate,

Yes, Water may not prevent constipation because constipation is the difficulty in the egesting the undigested food which is basically due to lack of roughage or fibre inside our body. Roughage facilitates the bowel movement across the alimentary canal.

Let's know about the rest options:

Drinking sufficient Water prevents dehydration. Dehydration is the lack of water inside our body which is caused due to long exposure to the sun, heavy work etc.

It maintains the homeostasis by oozing out of the skin in the form of sweat and getting evaporated. Evaporation of sweat takes away the heat from the body and hence, cools the body.

It prevents the skin from drying up by hydrating each and every cell with sufficient amount of water. It will help the skin to remove toxins out, and hence gives it a radiant glow.

Hope it helps...