Which statement is true about both a solid and a gas?
the atoms of both are moving.
the both have defined shapes in any space.
they both fill a container.
there is never any motion in either.

The solution is... They both fill a container, Solid atoms don't move and gases do. Gases don't have a shape only solids, Gases move very quickly so ''There is never any motion in either'' is not correct.

coral.

explanation:

coral. many marine organisms that produce calcium carbonate shells or skeletons are negatively impacted by increasing co2 levels and decreasing ph in seawater.

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.