The sediments from weathering help form that makes plant growth possible; those same bits also make up sedimentary . Growing plant and freezing force cracks in rocks and sidewalks to expand. Water reacts with in the air to form carbonic acid, which in turn reacts with in limestone to carve out caves.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.