Q. Which of the following statements about tropical and extra tropical cyclones is/are correct:

Select the correct answer using the code given below:

1 and 2 only

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3 and 4 only

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1, 2 and 3 only

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2, 3 and 4 only

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Solution

The correct option is A 1 and 2 only
Explanation:

Statement 1 is correct: A large sea with surface temperature of 27 degree celsius is a prerequisite for cyclone formation. Sea/ocean provides continuous supply moisture which is necessary for sustenance of a cyclone.

Statement 2 is correct: Extra tropical cyclones are bigger in size than that of tropical cyclones, hence they have bigger diameter.

Statement 3 is incorrect: Direction of movement of an extra tropical cyclone is from west to east and that of a tropical cyclone is from east to west.

Statement 4 is incorrect: Fronts are present only in extra tropical cyclones.

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Q. Consider the following statements:

Which of the above statements is/are correct?

Which of the following are correct regarding Temperate and tropical cyclones ?

उष्णकटिबंधीय चक्रवात (Tropical Cyclones) केवल समुद्र के ऊपर बनते हैं, जबकि बहिरूष्ण कटिबंधीय चक्रवात (Extra-Tropical Cyclones) भूमि और समुद्र दोनों के ऊपर बनते हैं।
उष्णकटिबंधीय चक्रवात पश्चिम से पूर्व की ओर बढ़ते हैं, जबकि बहिरूष्ण कटिबंधीय चक्रवात पूर्व से पश्चिम की ओर बढ़ते हैं।
बहिरूष्ण कटिबंधीय चक्रवात में एक स्पष्ट अग्र प्रणाली विद्यमान होती है, जबकि यह उष्णकटिबंधीय चक्रवातों में अनुपस्थित होती है।
उष्णकटिबंधीय चक्रवात बहिरूष्ण कटिबंधीय चक्रवात की तुलना में बहुत बड़े क्षेत्र को प्रभावित करते हैं।

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