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Q: Which of the following is not a 'lowest' cloud in the atmosphere?
  • A. Stratus
  • B. Cirrostratus
  • C. Stratocumulus
  • D. Cumulus
Correct Answer: Option B - Cirrostratus (cirrus) clouds develop above 20,000 feet, near the top of the atmosphere. At this elevation water vapour freezes into ice crystals. Only the tops of cumuilonimbus (better known as thunderstorms, thunderheads or thuneler clouds) rise higher than cirrostratus reaching up to 50,000 feet or more above sea level. Cirrostratus clouds are defined by elevation, shape and texure. cloud elevation are identified as high- level cirrus (above 20,000 feet), mid-level also (between 61500 and 20,000) and low-level (below 6,500) clouds.
B. Cirrostratus (cirrus) clouds develop above 20,000 feet, near the top of the atmosphere. At this elevation water vapour freezes into ice crystals. Only the tops of cumuilonimbus (better known as thunderstorms, thunderheads or thuneler clouds) rise higher than cirrostratus reaching up to 50,000 feet or more above sea level. Cirrostratus clouds are defined by elevation, shape and texure. cloud elevation are identified as high- level cirrus (above 20,000 feet), mid-level also (between 61500 and 20,000) and low-level (below 6,500) clouds.

Explanations:

Cirrostratus (cirrus) clouds develop above 20,000 feet, near the top of the atmosphere. At this elevation water vapour freezes into ice crystals. Only the tops of cumuilonimbus (better known as thunderstorms, thunderheads or thuneler clouds) rise higher than cirrostratus reaching up to 50,000 feet or more above sea level. Cirrostratus clouds are defined by elevation, shape and texure. cloud elevation are identified as high- level cirrus (above 20,000 feet), mid-level also (between 61500 and 20,000) and low-level (below 6,500) clouds.