Question

All of the following are characteristics of Igneous rocks EXCEPT:

a.
igneous rocks are always thin and brittle
c.
some igneous contain vesicules
b.
igneous rocks contain interlocking grains
d.
igneous rock are composed of crystals

and:

Which of the following may display two different grain sizes?
a.
metamorphic rock
c.
igneous rock
b.
sedimentary rock
d.
magma

Answer 1

This would be a Earth Science question.