At convergent plate boundaries, Earth's crust is being

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

Ibelieve it is- a mixed economy offers some protection for consumer rights but still allows a good deal of choice.

Your answer is d. silli hope this ! : ) i left an explanation down below if you need it: a sill forms when hot magma squeezes between layers of rock to form a hardened sheet of rock. a sill is basically a tabular sheet intrusion between old layers of sedimentary rock, volcanic beds, or in the direction of foliation inherent in metamorphic rock. the word sill means a concordant intrusive sheet.