Honors Assignment Questions – অনার্স অ্যাসাইনমেন্ট প্রশ্ন

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Honors Assignment Questions
আপনার বন্ধুদের সাথে শেয়ার করতে নিচের বাটন এ ক্লিক করুন ....

Honors Assignment Questions – অনার্স অ্যাসাইনমেন্ট প্রশ্ন

  • Honors Assignment It is a general belief that dust is very harmful to us. But this is only
  • one side of the picture. Dust is also very useful to us. But what is
  • dust? How is it formed? Every solid substance is composed of

অনার্স এসাইনমেন্ট প্রশ্ন – Honors Assignment Questions

  • very small particles. When these small particles of matter are
  • scattered, they become dust particles. For example, if we break a
  • brick or a stone into small pieces, it will turn into small particles
  • of dust. There are different ways by which dust is formed. When

অনার্স এসাইনমেন্ট

  • solid things break, dust is formed. Smoke which is generated by
  • the burning of coal, wood, petrol ete also produces dust. Dust
  • particles also come from plants, animal matter, sea salt, desert and
  • ash from volcanoes. These particles that get mixed with air are
  • called dust. Air carries dust particles from one place to another.
  • The particles of the earth’s surface also fly in the air in the form of
  • dust. Jhe biggest utility of dust particles is that they help in the
  • formation of rain. The water vapours in the clouds condense on
  • dust particles in the form of water drops. These drops fall on the
  • carth as rain. So, if there is no dust particle, rain will come late.
  • Dust also helps to form mist, fog etc.
  • The dust particles which are present in the air, scatter sunrise in all

Honors Assignment – অনার্স এসাইনমেন্ট

  • directions. Because of this, there is no complete darkness even
  • long after the sunset. We see red colour in the sky at sunrise and
  • sunset because of dust particles. In this way, we see that the dust
  • particles which are thought to be harmful are often very useful too.
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Honors Assignment Questions – অনার্স অ্যাসাইনমেন্ট প্রশ্ন


আপনার বন্ধুদের সাথে শেয়ার করতে নিচের বাটন এ ক্লিক করুন ....

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