Sponge holds the water, still it is an example of solid. Why?
There should be proper ventilation and exhaust fans in houses and factor
What happens when an inflated balloon is pricked with a pin?
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a. sponge has large holes that are made intentionally for it to hold water.
b. as we know that warm air rises and cold air sinks, warm air is removed by exhausts and ventilators while fresh air enters.
c. as air exerts pressure on walls of balloon, when it is pricked, air rushes out and balloon pops.
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