Question 1208Navigation General70% to pass
Cirrus clouds are composed primarily of _______________.
AI Explanation
The correct answer is B) ice crystals.
Cirrus clouds are composed primarily of ice crystals, not water droplets, nitrogen, or snow crystals. Cirrus clouds form at high altitudes, typically above 20,000 feet, where the temperature is low enough for water vapor to condense directly into ice crystals rather than liquid water droplets. The ice crystals in cirrus clouds give them a distinctive wispy, feathery appearance.
The other answer choices are incorrect because water droplets (A) would form lower-altitude clouds, nitrogen (C) is a gas that does not condense into clouds, and snow crystals (D) form at lower temperatures and altitudes than those where cirrus clouds are found.
Related Questions
#1206 High clouds, composed of small white flakes or scaly globular masses, and often banded together to form a "mackerel sky", would be classified as _______________.#1207 A thin, whitish, high cloud popularly known as "mares' tails" is _______________.#1209 The bases of middle clouds are located at altitudes of between _______________.#1210 Which list of clouds is in sequence, from highest to lowest in the sky? #1211 A low, uniform layer of cloud resembling fog, but not resting on the ground, is called _______________.