The theory of states that succeeding stages of human inhabitation can affect a site over time.

Ithink it is space that makes up 70 percent

Answer (d) may increase or decrease porosity through dissolution or deposition;

D: sill  is what it is on edgenuity!

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.