Question

solid nickel and iron is found in this layer. which layer is it found?
mantle
outer core
inner core
crust
question 2
which of the following statements is true?
because of the sun, the crust is the hottest layer of earth.
continental crust makes up more of the earths surface than the oceanic crust.
oceanic crust is denser than the continental crust.
the crust is the thickest layer of the earth.
question 3
which of the following statements is true regarding the mantle?
the mantle is solid.
convection occurs in the mantle.
the mantle is located above the earths crust.
the mantle is the smallest earths layer.

Explanation:

• For Question 1: The inner core is composed mainly of solid nickel - iron due to high pressure.
• For Question 2: Oceanic crust is denser than continental crust. Continental crust is thicker but less dense. The crust is not the hottest layer (core is hotter), and oceanic crust covers more of Earth's surface than continental crust, and the mantle is thicker than the crust.
• For Question 3: Convection occurs in the mantle as the semi - molten material moves due to heat transfer. The mantle is not solid (it has semi - molten regions), it is below the crust, and it is not the smallest layer.

Answer:

Question 1: inner core
Question 2: oceanic crust is denser than the continental crust
Question 3: Convection occurs in the mantle.