On This Day: 13 March 1973 Syria adopts ---------- ?

Questions

An integer that is greater than 1 & is divisible only by itself & 1 is known as a(n) _______?

An ounce of gold can be stretched into a wire how many miles long?

Analogy bull-cow as fox- __________?

goose - geese as passerby - ___________?

Ancient art practiced especially in the middle ages, devoted chiefly to discovering a substance that would transmute the more common metals into gold or silver & to finding a means of indefinitely prolonging human life?