Question 1 What are the parts of Earth's mantle?
-Inner core, asthenosphere, lithosphere
-Lithosphere, asthenosphere, mesosphere
-Crust, lithosphere, asthenosphere
-Mesosphere, asthenosphere, troposphere

Question 2
Two students below described a type of Earth's outermost layer:
Student A: 5–12 kilometers deep
Student B: Makes up the sea floor
Which type of outermost layer did the students describe?
-They both described the oceanic type.
-They both described the continental type.
-Student A described the oceanic type and Student B described the continental type.
-Student A described the continental type and Student B described the oceanic type.

Question 3
If Earth was like a hardboiled egg, which part of Earth would the egg shell represent and why?
-Crust, as its depth is up to 3,000 kilometers
-Mantle, as its depth is up to 3,000 kilometers
-Mantle, as its depth is less than 100 kilometers
-Crust, as its depth is less than 100 kilometers

Question 4
What forces the inner core of Earth to remain solid?
-Lack of water
-Low temperature
-Low density
-High pressure