Non-crystalline material means Select one:

a. they display the phenomenon of

allotropy

Ob they display the phenomenon of anisotropy

e. they display the phenomenon of crystallization

d. none of these

An artesian well is simply a well that doesn't require a pump to bring water to the surface; this occurs when there is enough pressure in the aquifer. The pressure forces the water to the surface without any sort of assistance.

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