🔍 Key Concepts

• High-level cloud types and their typical altitudes • Visual appearance of thin, wispy vs. layered vs. puffy clouds • Which cloud types are commonly used in weather lore names like "mares' tails"

💭 Think About

• First separate the choices into low, middle, and high cloud types—only one of these is typically a high cloud. • Think about what "thin" and "whitish" and a shape like a horse’s tail suggest: long and feathery, layered like a sheet, or puffy like cotton? • Ask yourself which of these cloud types sailors traditionally watch for as a sign of changing weather and approaching warm fronts.

✅ Before You Answer

• Verify which option is classified as a high-level cloud in standard meteorology. • Eliminate any cloud types that are usually low or middle altitude and appear as uniform gray layers or puffy heaps rather than streaky wisps. • Confirm which cloud type is described in books as wispy, hair-like filaments often pointing the direction of upper-level winds.