Question

Sophia was studying with Maalik about the layers of the Earth. They were given several different statements about the layers. Which statement about the layers would they identify as correct?
A-The outer core is less than 70 km in thickness.
B-The crust assists in forming Earth’s magnetic field.
C-The mantle is denser than the crust.
D- Pressure increases when moving from the core to the crust.

Answer 1

I am 95% confident that it is C

because c is a true statement.

Answer 2

The statement about the layers of the Earth that both Sophia and Malik would identify as correct is: C. The mantle is denser than the crust.

Earth is one of the planets that rotates on its axis and revolves around the Sun. Also, planet Earth is the only planet known to harbor and support life.

Based on astronomical records, planet Earth comprises four (4) distinct layers starting at the center and these include:

• The inner core

• The outer core

• The mantle

• The crust

The mantle has a density of 4.5 $g/cm^3$ while the crust has a density of 2.6 $g/cm^3$ because temperature and pressure within planet Earth increases with depth.

In conclusion, the mantle is denser than the crust since it is made up of metals rather than solid rocks and minerals which are found within the crust.

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