Why do scientists think earth's core contains iron?

Hello There!

Scientists think that the earths core contains iron because they have inferred that the core is iron by conducting seismic experiments. The magnetic field is also a strong clue.

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.

me and my friend did 2