Consider the following statements: 1. Jet streams occur in the Northern Hemisphere only. 2. Only some cyclones develop an eye. 3. The temperature inside the eye of a cyclone is nearly 10 C lesser than that of the surroundings. Which of the statements give

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Q: (IAS/2020)
Consider the following statements:
1. Jet streams occur in the Northern Hemisphere only.
2. Only some cyclones develop an eye.
3. The temperature inside the eye of a cyclone is nearly 10 C lesser than that of the surroundings.

Which of the statements given above is/are correct:

question_subject: 

Geography

question_exam: 

IAS

stats: 

0,82,83,19,39,82,25

keywords: 

{'cyclones': [1, 0, 1, 1], 'jet streams': [0, 0, 1, 2], 'cyclone': [1, 1, 2, 3], 'northern hemisphere': [3, 0, 0, 2], 'surroundings': [1, 0, 0, 5], 'temperature': [0, 1, 1, 7]}

The first statement is incorrect. Jet streams, narrow bands of strong wind in the upper levels of the atmosphere, occur in both the Northern and Southern Hemispheres of Earth. This is a common misconception because the Northern Hemisphere`s jet stream is studied more frequently due to the presence of more landmasses and populations.

The second statement is correct. Not all cyclones develop a well-defined eye, which is a calm area at the center of the storm. The eye forms due to the rotation of the cyclone and the stronger the cyclone, the greater the likelihood of an eye forming.

The third statement is incorrect. In fact, the temperature inside the eye of a cyclone is higher than its surrounding areas, not lesser. This is because of subsiding or downward moving, warming air in the eye region.

Therefore, the correct answer is option 3, which states only the second statement is correct.