Ammonia A ..... c,b,d all come from crude oil
A mountain peak on a topographic map a mountain would be represented by parallel contours of elevation according to the shape of the peak and the overall shape would be coming to a point or the peak of the mountain and since it is a mountain the contours would be fairly close together.
Arenal Volcano is in the middle of the continent
South america has changed the least as it moved very little. india and australia actually broke apart from africa to go to where they are now... so id say australia and india changed the most
