here is some facts
Limestone is a sedimentary rock, whereas marble is metamorphic. These two rock types can be distinguished by their textures. ... 2- Gabbro and basalt are two igneous rocks having the same chemical composition, and the same minerals (plagioclase feldspar + pyroxene), but are of different origins.
A.He
because He 's molecular weight is small than each other
The correct response is the second option.
6.1103x10^4. As this was the only answer that had the same number of significant figures as the starting value.
