Which of the following is a result of a change in pressure?

a. frost wedging
b. chemical feathering
c. oxidation
d. exfoliation

Probably exfoliation.

Answerscripps institution of oceanography; i believe this is correct plz check first good luck;

If a particular resource is not useful or needed then the price would be considerably low. once that resource is needed the price or value will raise depending on how useful or needed it is especially if the resource is low in quantity, the consumers would pay whatever they have to, to get that material.