Which characteristics are used to describe air? check all that apply.
altitude
odensity
o mass
o pressure
radiation

ANSWER:

The characteristics that are used to describe air are:

DensityMass Pressure.

EXPLANATION:

The density of air differs from one place to another so density characterizes the characteristics of air on that place. Similarly, pressure and mass also determines the characteristics of air. In normal temperature and pressure the air has the pressure of 1atm and density of In this way air is characterized by the density, pressure and mass.  

A. it is created from magma. the agents of a metamorphic rock is heat and pressure. (heat from intrusion of magma or burial)