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Yogita Ingle 6 years, 3 months ago
The word noise is derived from a Latin word ‘Nausea’ which means sickness in which one feels to vomit. Noise is the unpleasant and undesirable sound which leads to discomfort to human beings. The intensity of sound is measured in decibels (dB). The faintest sound which can be heard by Human ear is 1 Db. Due to increasing noise around the civilizations; noise pollution has become a matter of concern. Some of its major causes are vehicles, aircraft, industrial machines, loudspeakers, crackers etc. Some other appliances also contribute to noise pollution like television, transistor, radio, etc. when used at high volume.
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Yogita Ingle 6 years, 3 months ago
BJP president Amit Shah is the new Home Minister in the second Modi government while Rajnath Singh will be the new Defence Minister. Nirmala Sitharaman is the new Finance Minister.
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Yogita Ingle 6 years, 3 months ago
An earthquake is a sudden shaking movement of the surface of the earth. It is known as a quake, tremblor or tremor. Earthquakes can range in size from those that are so weak that they cannot be felt to those violent enough to toss people around and destroy whole cities.

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