Explain why
When we try to close a water tap with our fingers. Fast jets of water gush through the openings between our fingers

State whether True or False. Some salt enters our body through the water we drink.

Explain why the water obtained after passing hard water through cation exchange resins is acidic.

Explain why lime water becomes turbid when CO_2 is passed through it and the turbid solution becomes clear again when more CO_2 is passed through it.

When we turn on a tap we apply a ________ on it with the help of our fingers . [ Fill in the blank ]

The top of the atmosphere is at about 440 kV with respect to the surface of the earth, corresponding to an electric field that decreases with altitude. Near the surface of the earth the field is about 100 V cdot m^(-1) . Why then we do not get an electric shock as we step out of our house into the open? (Assume the house to be a still cage so there is no field inside.)

Why we feel cool when spirit is poured on our hand?