C2 4.1 - The Earth and its atmosphere

What is the Earth's outermost layer?

• Mantle

• Inner core

• Crust

• Outer core

Which layer of the Earth is the hottest?

• Mantle

• Crust

• Outer core

• Inner core

Which gas makes up most of the Earth's atmosphere?

• Oxygen

• Nitrogen

• Carbon dioxide

• Argon

Which of these is not part of the Earth’s internal structure?

• Crust

• Mantle

• Outer core

• Lithosphere

How do most sedimentary rocks form?

• From layers of sediment compressed over time

• From melting and cooling

• From high pressure and temperature

• From volcanic eruptions

What is a common characteristic of sedimentary rocks?

(a)  

Why are fossils often found in sedimentary rocks?

• They are porous

• They form in layers where organisms can be trapped

• They are formed under intense heat

• They contain metals

Which rock is an example of a sedimentary rock?

• Granite

• Basalt

• Limestone

• Marble

What causes metamorphic rocks to form?

• Cooling of magma

• Deposition of sediments

• Heat and pressure

• Melting and solidifying

Which of the following is an igneous rock?

• Basalt

• Slate

• Sandstone

• Marble