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Q: The inner and outer cores are probably composed mostly of?
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Of what substance are the inner planets mostly composed of?

Iron and Rock.


How do the inner planets differ from the outer?

The outer planets are mostly composed of gases and the inner planets are mostly made of rock, metals.


Which layer of earth is composed primarily of solid iron?

The inner core is solid and composed mostly of iron.


What two metal are in the inner and outer core?

Iron and nickel compose the bulk of the inner and outer core of the Earth.The bulk of the inner and outer cores, around 80%, are composed of iron. A substantial amount, around 10%, is composed of nickel, and the remainder is a mixture of other elements.


What is the inner core of the earth is composed of?

An alloy of solid nickel and iron, mostly.


What is the inner core of the earths composed of?

An alloy of solid nickel and iron, mostly.


What is the difference between the inner cores and outer cores?

The inner core is a solid, and the outer core is a liquid.


How are the compositions of the inner and outer planets different?

A basic, simplified answer is: The inner planets are mainly rock with iron cores. The outer planets are mostly gas, or liquefied gases.


Why are inner planets composed mostly of rock and metal?

The inner planets at made out of rocks because of the sun and the falling rocks.


Is the inner core made of molten metal?

No. The inner core is composed of solid metal, mostly an iron-nickel alloy.


How are the compositions of the inner planets and outer planets different?

A basic, simplified answer is: The inner planets are mainly rock with iron cores. The outer planets are mostly gas, or liquefied gases.


Define inner planets?

Every inner planet has a core. The cores of Mercury, Venus, and Earth are composed of iron-nickel. Mars's core is made of liquid iron sulfide mixed with some nickel.