By evaporation
The cold in winter causes the humidity to drop by condensing it out. The heat in summer can cause the humidity to rise by evaporating more water from nearby bodies of water.
During summer season there will be scarcity of water ,and the crops cannot survive from this hot season.
The water is cold in earth pots in summer season than during rains because the pots reflects the heat or cold. Then it produce little opposite temperature.
Earthen pot has tiny pores on its surface. The water oozes out from these pores. It then evaporates taking energy known as "latent heat" from the pot. Thus, the temperature of the water inside decreases. This process goes on and this is the reason why the water in earthen pot is cooled faster.
The air flow during the summer flows down instead of up causing the water to be warmer. during the winter it flows up causing a breeze to cross the water making it cooler
An earthen pot has small pores in its walls. When water is poured into it, some of it seeps through these pores to its outer surface. On reaching there, it evaporates.The heat required for evaporation is taken from the earthen pot and from the water in it. As a result, the water in an earthen pot gets cooled down.
Evaporative cooling.During the process of evaporation ,air takes in heat, thus cooling down the surrounding areas.In other words, particles of liquid absorb energy from the surroundings to regain the heat lost during evaporation,thereby cooling nearby objects.Same is the case with an earthen pot.
The earhern pots used for keeping water cool in summer have small pores in it.water seeps in these pores and evaporates.as evaporation causes cooling, earthen pots remain cool.
During hot summer days, water is usually kept in an earthen pot (called matka) to keep it cool. Let us see how it gets cooled. The earthen pot has large number of extremely small pores (or holes) in its walls. Some of the water continuously keeps seeping through these pores to the outside of the pot. This water evaporates (changes into vapour ) continuously and takes the latent heat required for vaporisation from the earthen pot and the remained water. In this way, the remaining water loses heat and gets cooled. This is also an example of the cooling caused by evaporation. It should be noted that all the water on the earth does not gets evaporated due to the high value of the latent heat of vaporisation of water. It is much less effective in humid environments than arid ones since high humidity limits the amount of evaporation.
Earthen pots have tiny holes in them through which some of the water keeps seeping. But it is not noticeable. The water which is now outside the earthen pot evaporates. Durin evaporation, the water gain heat energy from the surroundings to evaporate. Thus the surroundings and the water in the earthen pot loses heat energy and cools gradually.
There are a number of reasons why pond water would become stagnant in the summer. Pond water may not be stirred often enough.
Depends whether the earthen pot is baked or not, if it is, it's safe to keep it.
Physics explains this principle well - when evaporation takes place, cooling occurs. This is because for evaporation to take place, the water needs to change into vapor or gas and this only happens when there is heat in the surroundings. So when the water absorbs heat, it evaporates and this makes the container or surroundings cooler. The earthen pitcher contains many pores or small holes. When water is poured into the pot, a small part of it exits through these pores and evaporates from the surface of the pot, thus making the pot (and remaining water) cooler than before.
new earthen pots enable the water inside to seep outside to a certain extent which makes the surface of the pot damp.this moisture then evaporates and cools the water inside,but in older earthen pots seeping of water does not take place to an extent when it was new.therefore old earthen pots does not cool the water inside
Because the air expands during summer, which leads to the breaking of bottle; so to avoid this, it is kept under water.
Evaporation is an endothermic process.
when it is summer season the water evaporates ant clouds become heavy