It expands due to the fact the mercury reacts to heat in such a way that makes it rise up the tube.
Im not sure, but i think that its c. i hope this helps
Well the modern study of hsitory helps us not make the same mistakes as we did in earlier history.
<span>The chief god was Zeus. Before he became “Master of the Universe” and “Guarantor of World Order” he used his chief weapon, the thunderbolt, to demonstrate his power, also knowing he had a more humble start.</span>
