Which layer lies above 700 km altitude?

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Multiple Choice

Which layer lies above 700 km altitude?

Explanation:
The layer you reach above about 700 km is the exosphere. This is the outermost shell of Earth's atmosphere, where air becomes extremely thin and particles can travel into space or escape into interplanetary space. The exosphere gradually transitions into space rather than ending abruptly, and it begins roughly around 600–700 km. Below it lies the thermosphere, which ends at lower altitudes, while the troposphere, stratosphere, and mesosphere sit well beneath 700 km. So, above 700 km, the exosphere is the region you’re in.

The layer you reach above about 700 km is the exosphere. This is the outermost shell of Earth's atmosphere, where air becomes extremely thin and particles can travel into space or escape into interplanetary space. The exosphere gradually transitions into space rather than ending abruptly, and it begins roughly around 600–700 km. Below it lies the thermosphere, which ends at lower altitudes, while the troposphere, stratosphere, and mesosphere sit well beneath 700 km. So, above 700 km, the exosphere is the region you’re in.

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