Question

During summers we drink a lot of water in comparison to winter, yet we pass urine fewer in summers than winter. why?

Answer 1

during summer we need excess of water which is lost during evaporation so that we can keep our body at perfect body temperature as water is lost during evaporation we urinate less while in winter the external humidity is high so we lose much water through sweat and so we urinate much
 

Answer 2

This is due to the sweat glands (main cause) which are taking place to cool down the body temperature and adjust to the scorching summers heat. The sweat gland open at the sweat pore where they need contact supply of water the wastes and nitrogenous wastes too of the body are released on the skin to evaporate and make skin a lot cooler for the next epidermal shedding of the skin. This also means dehydration of body so try to drink a lot of water to prevent loss of water from the essential organs. The swear glands also have sebaceous and oil glands which also assist the moisture of the skin.