1) What is the name of the solid, outermost layer of the Earth? a) Crust b) Mantle c) Core d) Atmosphere 2) Which layer of the Earth is responsible for causing earthquakes and volcanic activity? a) Crust b) Mantle c) Core d) Atmosphere 3) Which layer of the Earth is the thickest? a) Crust b) Mantle c) Core d) Atmosphere 4) Which layer of the Earth is composed mainly of iron and nickel? a) Crust b) Mantle c) Core d) Atmosphere 5) Which layer of the Earth contains the air we breathe and the weather we experience? a) Crust b) Mantle c) Core d) Atmosphere

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