Fill in the blanks below by typing the correct answers into the boxes to describe the appearance of some igneous rocks.HINT: Rough , Silica , Acidic , Change , Color , strata , petroleum , Basic.
a) A mineral common in many igneous rocks
b) Rocks with rough texture usually have a surface
c) Rocks with low silica content are described to as
d) Sedimentary rocks are usually arranged
e) Rocks with high silica content are described to as
f) It can be used to distinguish different types of rocks
g) Remains of living organism embedded in sedimentary rocks help in the formation of this
h) Metamorphic rocks are rocks that have undergone
