Atmosphere: the layer of gases surrounding the earth  

  Column: anything resembling a pillar in form or function

       Horizontally: anything that  is horizontal to the horizon  

    Liquidation-.

1.    
1. To pay off (a debt, a claim, or an obligation); settle.
2. To settle the affairs of (a business firm, for example) by determining the liabilities and applying the assets to their discharge.
2. To convert (assets) into cash.
3. To put an end to; abolish.
4. To put to death; kill.

Seismologists-n.

The geophysical science of earthquakes and the mechanical properties of the earth.

    Updraft: an upward current of air

        Uproot: to tear or remove a plant and its roots from the ground