The earth's crust is: made of rock
the thinnest layer
broken into large pieces called plates
all of the above

Of the groups of elements below, which are most likely to gain electrons to become anions? a. alkali metal b. boron group c. halogen d. transition metal

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

When a septic tank backs up a goes in to clean it out