Can someone help me with this science question

1. The Earth have layers because of gravity.

2. We have layers because of the density in each layer.

The inner crusts (heavier):

Iron (Fe) , Nickel (Ni)

The outer crusts (lighter):

Aluminum (Al), Silicone (Si)

3. Hydrogen and helium makes up the Earth's crusts.

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1. The Earth's inner core is actually pretty wide, and big.

2. The surface spins way faster than Earth's surface.

3. The inner core is the hottest area on Earth.

4. Although the inner core is made out of Nickel, it's mostly Iron. (85% Iron 15% Nickel)

5. The inner core is not liquid... it's solid, even though it's the hottest thing on Earth.

I hope this helped!! Brainliest is appreciated :)