How many men left with magellan and how many came back?

The united states constitution gives the the power to regulate interstate commerce.

Psychologists studying infant memory want to determine at what age babies can remember specific events. an experimenter uses several puppets to demonstrate a series of actions while the infant watches. after a delay, the experimenter records how many of the actions the child imitates when playing with the puppets. what is the dependent variable?

What is it called when countries build lots of weapons to store and them in case of a war?