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Hope this helps you pass your test.
Answer:
The weather represents the state of the atmosphere in a certain place, at a certain moment. <em>Usually, the weather is defined by evoking the most obvious characteristic of the atmosphere, so that it can be warm weather, cold or frosty weather, clear weather.
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The characteristics that define the weather are the <u>meteorological elements.</u> These are:
- air temperature (expressed in degrees Celsius or Fahrenheit)
- air pressure (expressed in millimeters mercury column)
- wind direction and speed (wind direction is indicated by the cardinal or intercardinal point from which the wind blows, and the speed is expressed in m/s or km/h)
- nebulosity (the degree of coverage of the celestial vault with clouds, expressed in tenths of the visible celestial vault)
- the amount of precipitation represents the thickness of the water layer that would form if it stagnated on the earth's surface and is expressed in liters / m² or mm
<em>air moves because of two reasons..
1 temperature difference
2 pressure difference
<u>1 temperature difference :
</u> when there is temperature difference in the atmosphere ,,hot air rises and cold air takes its place ... so movement of air occurs..
<u>2 pressure difference:
</u><u /> also when there is pressure difference in atmosphere ,, air moves away from the area where there is more pressure..
<u>if there is no temperature and pressure difference then air will not move...
</u>
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The Harappa’s system of standardized weights and measures signified advance technology and an advancing civilization in the Indus River Valley. Remarkable accuracy in systems and tools of the Harappan people were demonstrated by fire-baked bricks which were consistently moisture resistant and uniformly sized.
