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ripple marks Saltos de línea: rip¦ple marks

Definición de ripple marks en inglés:

plural sustantivo

A system of parallel wavy ridges and furrows left on sand, mud, or rock by the action of water or wind.
Oraciones de ejemplo
  • The second clue is that many of the rocks have very conspicuous ripple marks on, which at least at first glance resemble those we might find on a common day seashore.
  • The absence of symmetrical ripple marks indicates that the site of deposition was protected from wave action.
  • The pattern of ripple marks and other features locked in southwestern Utah's sandstone indicates that the mineral grains had been blown in from those directions.

Definición de ripple marks en:

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Palabra del día doofus
Pronunciación: ˈduːfʌs
noun
a stupid person