Mask plays an inevitable role and became a part of our daily life in this pandemic era. The term maskne has become increasingly popular during the pandemic, particularly in the media, where it is used to describe several facial dermatoses.

He was behind the wheel of a 9-ton payloader ferrying job debris.

The sand dollars adjust the gaps between individuals depending on flow speed, and populations from more sheltered locations consist of slightly humpier (more cambered) individuals with greater lift coefficients.

Classic Arabic didn't turn into the various Arabic vernaculars. There is disagreement over whether the range of spoken Arabics all have a single ancestor (seems unlikely), but Classical Arabic is a somewhat artificial creation based on at least two dialects.