Pick up the correct statement from the following

[A].	The ratio of the up flux and down flux just above the snow surface, is called albedo
[B].	Spectral albedo of snow is calculated for the semi-infinite snow thickness
[C].	Water equivalent height of snow is the height of water column obtained by melting snow.
[D].	A homogeneous snow pack is one whose average grain size does not vary with depth.
[E].	All of these

Answer: Option E

Explanation:

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