Gujarat BoardEnglish MediumSTD 11 ArtsGeographyWinds3 Marks
Question
Explain briefly about the forearm.
✓
Answer
Airborne particles of different natures originating on different regions of the earth's surface do not merge easily when they meet.
Where they meet, a separating surface is formed which is called "Front" which is an area of $3$ to $50\ km$ width of air.
When hot air is pushed into the atmosphere over cold air on a sloping surface, as the air rises, the moisture in it condenses to form clouds and rain falls.
Some brides go through the cold air below this rain when the raindrops freeze and become hail.
The direction of the wind changes abruptly near the forehead.
The pressure also drops abruptly.
As a result it becomes an area of stormy weather.
There are two main types of ventilators $(1)$ Warm front and $(2)$ Cold front.
Front is very important in shaping the climate of any region.
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