The core of Earth is made out of iron and nickel. The outer core’s temperature is so hot that it melts the metal. The inner core is solid metal. What causes these differences? 1. The outer core is 2,300 km thick.
2. the inner core is solid by intense pressure of all its layers above it
3. the inner core has a cooler temperature allowing the metal to return solid
4. the inner core is made of different metal

Not all members of the radio audience of orson welles' war of the worlds broadcast panicked immediately. indeed, some didn't panic until they looked out of the window and saw empty streets; others didn't panic until they saw streets full of traffic. it was after checking out the situation that these citizens decided that the martians had indeed invaded earth. this example illustrates that contagion can result when people look to others for the interpretation of ambiguous situations . can result when cultural norms reinforce people's most likely responses. occurs primarily because humans are by nature irrational creatures. is especially likely when people are motivated to make independent decisions.