The Geosphere Quiz

What is the geosphere primarily made of?

• Water and air

• Rocks and minerals

• Soil and plants

• Lava and magma

Which of these is the outermost layer of the geosphere?

• Mantle

• Exoshere

• Crust

• Asthenosphere

What distinguishes continental crust from oceanic crust?

• It is denser and thinner.

• It is thicker and less dense.

• It is found below oceans.

• It is liquid in nature.

What is the main composition of the inner mantle?

• Nickel

• Iron

• Silicates

• Olivine

Which layer of the geosphere generates Earth's magnetic field?

• Inner core

• Outer core

• Mantle

• Asthenosphere

What state is the Earth's inner core in?

• Liquid

• Gaseous

• Solid

• Semi-solid

What is the asthenosphere responsible for?

• Producing minerals

• Geosphere dynamics

• Earth's magnetic field

• Reflecting sunlight

Which of these is NOT a property of minerals?

• Colour

• Streak colour

• Density

• Lustre

What does the Mohs scale measure?

• Density

• Hardness

• Colour

• Reflectivity

Which mineral has a pearly lustre?

• Galena

• Olivine

• Talc

• Psilomelane