In this illustration, which group highlights, or which groups highlight, nonmetals?

Groups B and D

Explanation:

The attached picture is that of the periodic table of elements. There are four colours showing different classes of the elements. The colours are coded A,B,C and D

A are metals (alkali metals, alkali earth metals, transition metals, actinides and lanthanides)

B and D are non-metals (halogens and gases including noble gases)

C are metalloids or semi-metals (they have some properties similar to metals and non-metals)

B and D is the answer because elements found in those colours have properties different from that of metals

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)

answerspecific gravity;