Question

The mining boom began with the
a) invention of dynamite by Alfred Nobel
b) discovery of the Comstock Lode
c) passage of the Homestead Act

Answer 1

The mining boom began with the.

a) invention of dynamite by Alfred Nobel.

b) discovery of the Comstock Lode.

c) passage of the Homestead Act.

The answer is letter B.

That's all i know, Hope it help :)