Consider the following statements: 1. Jet streams occur in the Norther...
Answer:
Major atmospheric phenomena and their characteristics:
Jet streams:
- High altitude, narrow, fast-flowing air currents.
- Occur in both Northern and Southern Hemisphere.
- Formed due to the temperature difference between polar and tropical regions.
- Influence weather patterns and air travel.
Cyclones:
- A low-pressure system with strong winds spiraling towards the center.
- Can occur in both Northern and Southern Hemispheres.
- Some cyclones develop an eye - a calm center with mostly clear skies.
- The temperature inside the eye is nearly 10 C lesser than the surroundings due to the cooling effect of rising air.
Correct statements:
- Jet streams occur in both Northern and Southern Hemisphere.
- Only some cyclones develop an eye, and the temperature inside the eye is nearly 10 C lesser than the surroundings.
Therefore, the correct answer is (b) 2 and 3 only.
Explanation:
The first statement is incorrect as jet streams occur in both Northern and Southern Hemisphere. The second statement is correct as not all cyclones develop an eye. The third statement is correct as the temperature inside the eye of a cyclone is nearly 10 C lesser than the surroundings due to the cooling effect of rising air.
Consider the following statements: 1. Jet streams occur in the Norther...
Correct Answer is Option (c)
Jet streams are high altitude westerly wind system blows at a height of 6 to 14 km, with very high speed up to 450 km/hr in the wavy form at both hemispheres. So #1 is wrong.
The Centre of the cyclone is called an Eye. The eye is a Calm region with no rainfall and experiences the highest temperature and lowest pressure within the cyclonic system. So #3 is wrong. So, by elimination, the answer is (c).
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