Which altitude range correctly defines the base height for low clouds?

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Multiple Choice

Which altitude range correctly defines the base height for low clouds?

Low clouds are defined by bases at or below 6,500 feet above the ground (AGL). This means their bases can occur from the surface up to 6,500 ft, which is why the correct description is “up to 6,500 ft.” Clouds with bases higher than that fall into the middle (6,500–20,000 ft) or high (>20,000 ft) categories. While some low clouds can form with bases well below 3,000 ft, the standard upper limit for low clouds is 6,500 ft.

Low clouds are defined by bases at or below 6,500 feet above the ground (AGL). This means their bases can occur from the surface up to 6,500 ft, which is why the correct description is “up to 6,500 ft.” Clouds with bases higher than that fall into the middle (6,500–20,000 ft) or high (>20,000 ft) categories. While some low clouds can form with bases well below 3,000 ft, the standard upper limit for low clouds is 6,500 ft.

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