Physics
A white and smooth surface is

Good absorber and bad reflector of heat
Good absorber and good reflector of heat
Bad absorber and good reflector of heat
Bad absorber and bad reflector of heat

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Physics
Which is evidence that supports the dynamo theory?

Convection occurs in Earth's inner core
Earth's core contains a large amount of iron
Granite and basalt conduct electricity
Earth's outer core contains liquid that conducts electricity

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