Hey guys here is a new interesting and amazing fact……..
If you put a piece of metal or glass put in sun, you will find, in a short while, that it becomes warm. But leaves remain cool to the touch even if they have been in the sun all day. Here is the reason.
Leaves have many tiny pores on their surfaces. We call these ‘stomata’. They are similar to the pores on your skin. Just as you sweat to control your body temperature, minute drops of water come to the leaf surface through the stomata and then evaporate. The process is called ‘transpiration’. It keeps the temperature of the leaves constant, so that they are always cool and fresh to the touch. Some people refer to trees as nature’s air conditioners!
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