a) The largest industrial nation in the world is

Russia.
the United States.
China.

b) One of the most important Asian industrial nations is

Thailand.
Japan.
Bangladesh.

c) Paper production is concentrated in the areas where there is

a lot of wood to use as raw material.
a lot of paying customers.
a lot of space.

d) The Silicon Valley is

the industrial center of China.
a center of high technology in California.
a computer factory.