How is Dust Useful to us?

How is Dust Useful to us?

Most people think that dust is very harmful to us. But this is not true. Dust is, in fact, very useful, and therefore, it is essential to know what dust is and how it formed.
Every solid substance is composed of very small particles. When these small particles of matter are scattered, they become dust particles. For example, if we go on breaking a brick or a stone in to small pieces, it will turn in to small particles. These particle get mixed with air and there are called dust particles. The air then carries dust particles from one place to another.
There are differrent ways by which dust is formed. When solid substance breaks, dust is formed. Smoke generated by the burning of coal, wood, petrol, etc. also produces dust. Dust particle also come from dead plants, sea salt, desert, volcanic sand, etc. The particles of earth’s surface also fly in the air in the form of dust.
The biggest use of the dust particles is that clouds condenses on the dust particles in the form of water-drops. These drops fall on the earth as rains. The absence of dust particles can delay the rain. Likewise, mist, fog, etc. are also formed due to the presence of dust particles.


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How is Dust Useful to us?

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