Question

Yes Richa that's bcoz when we update our apps so they get new functions
So may be this reason there
Hmm...​

Answer 1

Answer:

That pressure is called atmospheric pressure, or air pressure. It is the force exerted on a surface by the air above it as gravity pulls it to Earth. Atmospheric pressure is commonly measured with a barometer. In a barometer, a column of mercury in a glass tube rises or falls as the weight of the atmosphere changes.