Why do aquatic species feel more comfortable in the lakes in winter than in summer ?

why are the aquatic species more comofortable in cold water in comparision to warm water?

Give reasons for the following : (A) Aquatic species are more comfortable in cold water than warm water. ( b) At higher altitude people suffer anoxia resulting in inability to think.

Why do telephone wires sag in summer ?

Give reasons for the following : (a) Measurement of osmotic pressure method is preferred for the determination of molar masses of macromolecules such as proteins and polymers . (b) Aquatic animals are more comfortable in cold water than in warm water.

Why is a white dress more comfortable than a dark dress in summer?

"In scooters more viscous mobile oil is used in summer than in winter". Why?

Why do aquatic animals die in boiled water ?

Why is CuCl more covalent than NaCl?

Give biological reason for the following: There is frequent urination in winter than in summer.