Federated Republic of Yugoslavia
Answer:
Japan, an island nation with few natural resources, relied on foreign trade. ... When the Great Depression hit the world in the early 1930's, counties no longer imported Japanese luxuries such as silk. The value of Japanese exports dropped by 50% between 1929 and 1931
First one is C. They believed the ships carried war materials to aid Great Britain.
I do not want to steer you wrong with the second one, since I have no 100% sure answer. We have not got through to this part yet. This is if you are talking about WWI.
Lead-212 and Lead-208 are nuclides of lead. A nuclide is an atomic species that is defined by the constitution of its nucleus. Nuclides refers to a nucleus than to an atom. Each of the two lead nuclides have different number of neutrons.