Understanding the Geosphere and Earth's Layers

What does the prefix 'geo' in geosphere and geology signify?

• Air

• Life

• Earth

• Water

Which layer of the Earth is the thinnest and makes up only 1% of its mass?

• Mantle

• Core

• Crust

• Lithosphere

Where is the oceanic crust primarily located?

• In the mantle

• In the ocean

• In the atmosphere

• Under continents

Which type of crust is denser, oceanic or continental?

• Neither is dense

• Both are equally dense

• Continental

• Oceanic

What is the primary role of the lithosphere?

• It supports tectonic plates

• It is the outermost layer of the core

• It is the thinnest layer of the Earth

• It is the source of Earth's magnetic field

Which part of the mantle is known for supporting tectonic plates?

• Outer core

• Mesosphere

• Asthenosphere

• Lithosphere

What is the composition of the Earth's outer core?

• Solid iron and nickel

• Molten lava

• Liquid iron and nickel

• Solid rock

Why is the Earth's magnetic field important?

• It is responsible for earthquakes

• It supports tectonic plates

• It creates the atmosphere

• It protects us from space debris

What phenomenon is caused by space debris interacting with Earth's magnetic field?

• Tsunamis

• Volcanic eruptions

• Aurora Borealis

• Earthquakes

What is the main reason the inner core is solid despite high temperatures?

• Low temperatures

• Lack of pressure

• Presence of water

• Intense pressure