The maximum height of the troposphere is approximately 18 km, which is typically reached at the equator. The intense solar heating at equatorial regions causes the air to become very warm and expand significantly, pushing the boundary of the troposphere to its highest limit. This height is nearly double the altitude found at the poles, showing extreme geographic variation. ANSWER: (B) 18 km
What is the maximum height of the troposphere from the Earth’s surface? (A) 12 km (B) 18 km (C) 6 km (D) 8 km
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The troposphere reaches its maximum altitude of about 18 km over the equatorial regions. This is due to the high levels of solar radiation received at the equator, which generates strong convective currents that lift the air. Additionally, the Earth’s centrifugal force, resulting from its rotation, is strongest at the equator, contributing to the outward bulge of the atmosphere. This increased height means that weather systems and clouds can reach much greater altitudes in the tropics compared to the polar regions. Understanding this maximum height is essential for aviation and for studying global atmospheric circulation patterns.
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