Known to sailors around the world as the 'doldrums', these (are) 1. E...
Explanation:
The correct answer is option 'B' - 2 only.
The doldrums, also known as the Inter-Tropical Convergence Zone (ITCZ), is a region of calm winds and low pressure that is located near the equator. Here is a detailed explanation of each option:
1. Exist at the edge of the tropics:
The doldrums do not exist at the edge of the tropics. They are located near the equator, which is not considered the edge of the tropics. Therefore, option 1 is incorrect.
2. Also known as the Inter-Tropical Convergence Zone (ITCZ):
This statement is correct. The doldrums are also known as the Inter-Tropical Convergence Zone (ITCZ). The ITCZ is a belt of low pressure that encircles the Earth near the equator, where the trade winds from the Northern and Southern Hemispheres converge. The convergence of these winds causes the air to rise, creating a region of low pressure and calm winds. Sailors often refer to this area as the doldrums because the lack of wind makes it difficult to navigate. Therefore, option 2 is correct.
3. Popular for high wind speeds throughout the year:
This statement is incorrect. The doldrums are known for their calm winds, not high wind speeds. Sailors often encounter light, variable, or even stagnant winds in this region, making it difficult to sail through. Therefore, option 3 is incorrect.
In conclusion, the doldrums are known as the Inter-Tropical Convergence Zone (ITCZ) and are characterized by calm winds and low pressure near the equator. Therefore, the correct answer is option 'B' - 2 only.
Known to sailors around the world as the 'doldrums', these (are) 1. E...
- It is a belt around the Earth extending approximately 5 degrees north and south of the equator. Here, the prevailing trade winds of the Northern Hemisphere blow to the southwest and collide with the Southern Hemisphere's driving northeast trade winds.
- Due to intense solar heating near the equator, the warm, moist air is forced up into the atmosphere like a hot air balloon. As the air rises, it cools, causing persistent bands of showers and storms around the Earth's midsection. The rising air mass finally subsides in what is known as the horse latitudes, where the air moves downwards towards Earth's surface.