A student writes Ba?- as the symbol for a barium ion. Explain what is incorrect about the symbol.

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.

it's c (engineer's do their work with mechanical stuff not on any living being)

answersilicon (si); oxygen (o);

they all get energy from eating other animals, dead animals to be more precise.

hienas tends to steal pray from other animals. crows and vultures tend to eat dead animals and leftovers.

hope it ,

bioteacher101