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प्रश्न
What do you understand by the term ‘4 o’clock showers’?
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उत्तर
In regions closer to the equator, the rate of evaporation is very high. Air gets heated because of the high temperature and starts rising in the form of convection currents. As it rises, it expands and cools. The cooling causes condensation, which results in heavy downpours. This rain is accompanied by thunder and lightning and since it mostly occurs around 4 p.m., it is often called the 4 o'clock showers’.
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संबंधित प्रश्न
Write true or false. Correct the false statement.
A rise in temperature causes more condensation while a fall in temperature results in evaporation.
Write true or false. Correct the false statement.
Heavy rainfall occurs on the leeward or rain shadow side of highland.
Fill in the blank:
Humidity refers to the amount of moisture or __________ present in the air.
Fill in the blank:
The amount of cloud cover in the sky is expressed in ________
How does the following element influence the weather of a place?
Pressure
Give a brief description of the Westerlies in the northern hemisphere.
- The diagram alongside illustrates one of the factors that affect temperature. What is it?
- Which side of the mountain is likely to have houses and be covered with trees?
Differentiate between precipitation and condensation. Give one example of each.
Who am I?
I am the solid state of water droplets.
Who am I?
I am present in the atmosphere in the form of vapour.
