EARTH SUBSYSTEM & ROCKS AND MINERALS

What is the innermost layer of the Earth?

• core

• outer core

• Inner core

hich layer of the Earth is primarily composed of solid iron and nickel?

• inner core

• outer core

• core

The Earth's crust is divided into how many major tectonic plates?

• 5
• 7
• 10
• 12

Which layer of the Earth contains the asthenosphere, where convection currents

drive plate tectonics?

• Crust
• Core

• Mantle

• Lithosphere

The Earth's lithosphere is made up of which two components?

• Crust and upper Mantle

• Crust and Core
• Mantle and Core
• Atmosphere and Hydrosphere

What type of rocks make up the Earth's continental crust?

• Igneous rocks
• Sedimentary rocks
• Metamorphic rocks
• Granite

The layer of the Earth's atmosphere closest to the surface, where weather

occurs, is called the?

• Stratosphere
• Exosphere
• Mesosphere
• Troposphere

Which of Earth's subsystems includes all of its water, including oceans, lakes,

and groundwater?

• Atmosphere
• Biosphere
• Hydrosphere
• Lithosphere

The Earth's mantle is divided into which two main parts based on their physical

properties?

• Inner core and Outer core
• Crust and Core
• Lithosphere and Asthenosphere
• Mesosphere and Troposphere

What is the thickest layer of the Earth's atmosphere?

• Stratosphere
• Troposphere
• Mesosphere
• Thermosphere