The imaginary line of secrecy and mistrust is called the iron curtain.
Answer:
These atoms will decay as the rock ages, and by measuring the ratio of radioactive isotopes within the rock, scientists can figure out how long it has been around. In 1913, geologist Arthur Holmes published “the Age of the Earth,” the first major effort to date the planet using radiometric dating.
B. Equal Protection is your answer
Answer:
indirect popular voted
Explanation:
it cannot be direct because you have to do voting in presidency it's not like everyone gather in a place and vote together
