Why the animals that lives in burrows usually wander during night time only?

The animals which are active during night time and collect food are called

Why we cannot see stars during day time ?

The animals which are active during day time,take rest at night time are called

Why do we salivate during a nap of day time ?

Why are the temperatures very high during the day and cold during the nights in deserts ?

Balu said that , "Plants perform Photosynthesis during day time. They respire during night time ". Do you agree with Balu ? Why ? Why not ?

Animals which are active during night and sleep during the day are called-

Plants photosynthesize during daytime and respire during the night. Do you agree to this statement? Why? Why not?

(a) A comb run through one’s dry hair attracts small bits of paper. Why? What happens if the hair is wet or if it is a rainy day? (Remember, a paper does not conduct electricity.) (b) Ordinary rubber is an insulator. But special rubber tyres of aircraft are made slightly conducting. Why is this necessary? (c) Vehicles carrying inflammable materials usually have metallic ropes touching the ground during motion. Why? (d) A bird perches on a bare high power line, and nothing happens to the bird. A man standing on the ground touches the same line and gets a fatal shock. Why?