Which phrase describes a typical feature of plains? usually have a high relief
have steep sides
usually have a high elevation
can be interior

Usually have a low relief, can be interior, and can be coastal.- are phrases that describe typical features of plains.

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

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.