The 4 clues are 1) color change 2) the formation of gas bubbles 3) formation of a precipitate 4) temperature change. I hope this helps
Germany's geographic location was an advantage when it was on the offensive in the war because <span>it was situated next to an extremely wide river, the Rhine, which was difficult for the Allies to cross.</span>
May I know the answer choices, so that I may help you?
<em>could you be a little more clear on what the question is...?</em>
