Question

3. The honeycomb-like appearance of this sandstone is a result of.

A. oxidation.
B. hydrolysis.
C. frost wedging.
D. salt weathering.

Answer 1

C. frost wedging.

Step-by-step explanation:

• The honey-comb-like structure formed on the sand stone is the result of stresses due to frost wedging in the sandstone.

• As we know that the microscopic structure of snow is hexagonal and similar is the pattern being discussed here for a honeycomb.

Frost wedging is the process of wearing of rocks by the repeated cycles of freezing and melting of water in the porous cavities of the sandstone.

Due to anomalous expansion of water on freezing it exerts stress on the inner surfaces of the space it occupies in the porosity.

• As we know that the structure of the molecular bonds is arranged in a cage-like structure of ice which wears out the particles of the rock leaving a honeycomb structured impression due to the stresses.

Answer 2

The answer is "Option C".

Explanation:

Wedging Freeze is generated by repeated freezing. Freeze wedging occurs, whenever the water is turned into ice as a result of the 9 percent expansion. When it freezes, cracks full of water are forced to separate further. and other options are incorrect, that can be described as follows:

• In option A, It is a state where the element converts into a liquid, that's why it is not correct.
• In option B, It is a reaction in which the bonds of water is divided into particular substance, that's why it is not correct.
• In option D, It is a form of mechanical or physical rock weathering, that's it is not correct.