Answer:
C, process.
Explanation:
A process is a sequence of actions that a technological system undergoes to produce an output.
Answer:
When the water evaporates, it leaves behind a solid layer of minerals
Answer:
Rex is not a Tyrannosaurus rex because each of his hands has three fingers. Tyrannosaurus had only two fingers on each hand.
Out of the three, only 1 is acidic because litmus paper turns red in acidic compounds and blue in basic compounds.