Earth's Systems

The fossils found in which layer would be the youngest?

• A

• B

• C

The diagram shows different layers of sedimentary rock where each layer is labeled with a letter. Which statement is correct?

• The left part of Layer B is younger than the right part.

• The left part of Layer F is the same age as Layer M.

• Layer R is older than Layer M

• Layer I is older than Layer B

The age of the rock layer in the middle can be generally determined from the layers around it based on:

• radiometric dating

• rock type evaluation

• the law of superposition

• dendrochronology

Which of the following is the correct order of Earth's layers from outermost to innermost?

• atmosphere, lithosphere, mantle, outer core, inner core

• atmosphere, mantle, lithosphere, inner core, outer core

• inner core, outer core, mantle, lithosphere, atmosphere

• mantle, lithosphere, inner core, outer core, atmosphere

The layers of the Earth were formed because of which property of matter?

• convection

• density

• mass

• volume

Select all that apply:

Elements with __________ density will be located ____________ of Earth.

• high; on the surface

• low; in the center

• low; on the surface

• high; in the center

When scientists find the exact age of a material like rocks they use:

• radiometric dating.

• the Law of Superposition

• the Law of Cross-Cutting

• the Theory of Plate Tectonics

Heat transfer by convection is caused by differences in what two things:

• Type of material and its thickness

• Weight and heat

• Temperature and density

Select all that apply:

The movement of plates on the surface of the Earth is due to:

• convection in the mantle

• heat in the core trying to escape to the surface

• global climate change

• oceanic currents and the tides

The heat for convection in the mantle comes from:

• The sun

• The moon

• The core

• The ocean