Match the following items.
1. Stalin
Communism
2. Mussolini
Fascism
3. Hitler
Nazism

What is found within a ranger tower overlooking a drained lake

Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite

How do oceanographers measure the salinity of ocean water?