<span>tierra helada and the puna.
tierra fría.
tierra templada.
<span>tierra caliente.</span></span>
Answer:
Wastewater treatment
Explanation:
The major aim of wastewater treatment is to remove as much of the suspended solids as possible before the remaining water, called effluent, is discharged back to the environment. As solid material decays, it uses up oxygen, which is needed by the plants and animals living in the water.
D. Density
The bulk density of a planet will reflect the relative amounts of the materials the world is made of, regardless of what materials occur at the surface.