the outter core
The second layer of the Earth's atmosphere is called Stratosphere.
all was the best
The hardest substance that is naturally occurring is a diamond. However, there are harder substances that have been made by scientists in labs.
The ozone layer is contained in the second layer of Earth's atmosphere, called the Stratosphere.
Tropopause
the hardest layer of the earth's surface is the crust because it is made up of rocks and other hard materials
The second layer of the Earth's atmosphere is called Stratosphere.
well, the earths crust is the hardest cause its made of rock and metal formed together.
Sioux quartzite
Its Tungsten
all was the best
The hardest substance that is naturally occurring is a diamond. However, there are harder substances that have been made by scientists in labs.
No, its the second. The first layer is the crust.
mantle
STRATOSPHERE
The ozone layer is contained in the second layer of Earth's atmosphere, called the Stratosphere.
There is the atmosphere (air), geosphere (earth), asthenosphere (earth and upper mantle). There is also the hydrosphere (water)