Consider the three classes of rocks, namely igneous, sedimentary, and metamorphic. What physical features would you expect to possibly find ONLY in...

Consider the three classes of rocks, namely igneous, sedimentary, and metamorphic.

What physical features would you expect to possibly find ONLY in one class of rock but not in the other two. Example: if a rock hasvesicles, it must be an igneous rock. Neither sedimentary nor metamorphic rocks show this feature.

Below write:

• two features that you would expect to find only in igneous rocks but not in metamorphic or sedimentary rocks,
• two features that you would expect to find only in sedimentary rocks but not in metamorphic or igneous rocks, and
• two features that you would expect to find only in metamorphic rocks but not in metamorphic or sedimentary rocks.