Misc: In 1946 War broke out in Indochina as Ho Chi Minh attacked the---------- . ?

Questions

The surface area of a human lung is equal to a?

The human body transmits nerve impulses at about __ metres a second?

Spread out, the walls of the human intestines would cover an area of about?

The hydrochloric acid in the human stomach is strong enough to dissolve a?

There are ______ phalanges (finger bones) in a human hand?