Fact 1: Chemical weathering causes iron in rock to oxidize. Fact 2: Limestone is a fairly common rock type. Given the two facts above, chemical weathering causes iron to oxidize in what?
Options:
[I] calcite;
[II] limestone;
[III] In sediment;
[IV] the skin;
[V] graptolites;
[VI] loose soil;
[VII] body water;
[VIII] soils;
Answer:
[II]