2024 8 Introduction to Earth and Its Resources Ch. 8

A student writes down some possible properties of different layers of Earth. Which layer(s) is (are) matched with the correct properties?

• asthenosphere only
• continental crust only
• asthenosphere and lithosphere
• continental crust and oceanic crust

The image shows Earth’s lithosphere and asthenosphere with several individual layers labeled. Which layer(s) make(s) up the lithosphere?

• layer 1 only
• layer 3 only
• layers 1 and 2
• layers 3 and 4

A student records observations about two different layers of the Earth as shown in the table. What do Layers 1 and 2 represent?

• Layer 1: asthenosphere; Layer 2: continental crust
• Layer 1: continental crust; Layer 2: lithosphere
• Layer 1: asthenosphere; Layer 2: lithosphere
• Layer 1: lithosphere; Layer 2: asthenosphere

Question How are the lithosphere and the asthenosphere similar?

• They are both part of the crust.
• They are both part of the mantle.
• They both have the same thicknesses.
• They both have the same physical properties.

Which table correctly compares the characteristics of the lithosphere and the asthenosphere?

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Mantle material rises in convection currents because heated materials become more dense.

• True
• False

To study Earth’s interior, geologists often rely on indirect methods, such as evidence from fossils.

• True
• False

Which is part of the Earth's hydrosphere?

• liquid outer core
• solid inner coure
• granite
• ocean water

What is the relatively soft layer of the upper mantle called?

• continental crust
• lithosphere
• asthenosphere
• inner core

Earth system has two sources of energy. What are those two sources of energy? (Choose two)

• Heat from the sun
• heat from the moon
• heat flowing from the Earth as is cools
• cosmic energy from the solar system.
• heat from solar flares