Japan’s population nearly doubled, leading to Japan: A) Seizing land in the mainland Asia
B) Instituting a “one-child” policy
C) Increasing immigration to the United States
D) All of the choices are correct

d. it adversely affected american productivity

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

the steam engine.

the locomotive.

the telephone.

the telegraph.

the internal combustion engine.

the rifle.

ironclad ships.

electricity/light bulb.