'This layer of rock between the Earth's core & crust makes up about 85 percent of the planet's mass'
the mantle
GEOLOGY: This layer of rock between the Earths core & crust makes up about 85 percent of the planets mass
This layer of rock between the Earth's core & crust makes up about 85 percent of the planet's mass
This layer of rock between the Earth's core & crust makes up about 85 percent of the planet's mass
GEOLOGY
the mantle
GEOLOGY