Which of the following cloud types is characteristically fibrous, wispy, composed entirely of ice crystals, and typically found at very high altitudes in the troposphere?

💡 Solution & Explanation

Cirrus clouds form high in the troposphere, usually above six thousand meters, and consist entirely of tiny ice crystals due to sub-freezing temperatures at that elevation, appearing as delicate white filaments. Cumulus clouds are detached, fluffy cauliflower-shaped clouds with flat bases formed by localized thermal convection. Stratus clouds form low, uniform gray layers resembling elevated fog that frequently produce light drizzle. Nimbus is a general suffix or prefix applied to dark rain-bearing clouds that span multiple vertical levels.