How did scientists discover that rocks farther away from the mid-ocean ridge were older than those near it?

What was an important effect of blackstone's commentaries of the laws of england? a. people in england no longer had to pay taxes b. common law became more accessible c. judges were able to rule as they d. the rights of the accused were done away with.

Many of the mauryan empire’s huge pillars originally were transported from quarries in india. a. central b. eastern c. southern d. western

What are the most populous and least areas of russia and why are some areas more heavily populated than others