Why do the wooden doors become very hard to close and open in rainy season.

Why is the opening of a dropper very narrow ?

Wooden doors swell up and get stuck up during rainy season due to .........

Why do new batteries 'become useless after some days?

During rainy season wooden doors warp and become difficult to open or to close because of ...........

Which changes do you notice in leather articles and gunny (jute) bags during the rainy season?

Answer the following questions : Take any electricity bill of your home. In the bill there is one table which shows the units consumed by you for the last eleven months. Find the average consumption of electricity in your home for each seasons (i.e summer, winter and rainy season). Are they the same ? why ??

Why does a metalic piece become very hot when it is surrounded by a coil carrying high frequency (H.F.) alternating current?

What will you do if, your sister has become incommunicative and wh prefers to remain alone ? Why ?

Both animals and plants grow. Why do we say that growth and differentiation in plants is open and not so in animals? Does this statement hold true for sponges also?

Answer the following question in short : Why is lightning not seen every day during the rainy season?