Why did settlers continue to head west even as gold and silver disappeared?

The great movement of settlers continued for almost forty years. ... They moved back toward the east, searching for gold and silver in the wild ... Mining camps quickly grew into towns with stores, hotels, even newspapers

Explanation:

the correct answer option is: weapons.

explanation:

tensions rose as the two opposing superpowers competed for 'weapons'.

referring to the cold war (1945-1991), the two superpowers, usa and ussr, experienced a phase of struggle and conflict with each other. these two superpowers considered each other as a threat to their survival and thus opted for policies to strengthen their positions.

the two superpowers never went to war with each other directly but competed for weapons to preserve their positions.

thing is, i'm afraid, you can't.

the most you can do is log out and never log in again.