Physics
Which is evidence that supports the dynamo theory?

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

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Physics
Which one of the following is the correct sequence of passage of light in a compound microscope?

Condenser -Objective lens -Eye -piece -Body tube
Objective lens -Condenser -Body tube -Eye piece
Condenser -Objective lens -Body tube -Eyepiece
Eyepiece -Objective lens -Body tube -Mirror

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