How do i classify earth's layers based on their physical properties

There are five layers to the Earth (from the inner to the outer):

The Inner Core- This is composed of a heavy metallic material an Iron ball.

The Outer Core- This is composed of liquid metal that revolves around the inner core creating the Van Allen belt, which is responsible from keeping the suns harmful u.v rays off of us.

Both cores are made of Iron and some nickel and are believed to be about 2900km thick

Two other important ones are the mantles the upper and lower mantle the are separated by the temperature of the magma the inner mantle is much hotter than the outer mantle, which is responsible for the rotation of the crusts in a convection type manner the inner core moves up to the surface and grabs the crusts and rotates it then after it settles back to the bottom. For more info look up tectonic plate theory. The two layers for the mantles are known as Mesosphere(2500 km thick) and Asthenosphere(250 to 350 km) Mesosphere is the inner core and it is made up of solid but soft rock that flows smoothly and the Asthenosphere is made up of solid rocks that are slightly melted.
Last and most important because we live on it is the crust, which is known as the Lithosphere this is mainly solid rock and is around 250 km thick
Hope this helps :)

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic 

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