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Q.

Depth hoar refers to:

 A.

A deposit of hoar frost on tree branches, plant stems, and wires

 B.

Fern-like ice crystals directly deposited on snow, ice or already frozen surfaces

 C.

Faceted crystals grown large within cavities beneath the surface of banks of dry snow

 D.

Crystals that form in glacial crevasses where water vapour can accumulate under calm weather conditions

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Solution:
Option(C) is correct

Depth hoar refers to faceted crystals that have slowly grown large within cavities beneath the surface of banks of dry snow.

Depth hoar crystals grow continuously at the expense of neighbouring smaller crystals, so typically are visibly stepped and have faceted hollows.


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