Erosion can be controlled by building terraces. The correct option among all the options that are given in the question is the first option. The building of terraces prevents soil erosion by a good margin. It is mostly done in the hilly regions to stop erosion of soil by rain. I hope the answer helps you.
Because the city was crowded, government buildings were far apart and traffic was heavy. So the government decided to create a new city specifically developed to be the capital.
