16. Dr. Garcia is a geologist from Peru, and Dr. Ferreira is a geologist from Brazil. They are comparing rocks from their areas for their research and have some information about them. The information is
as follows:
• Rock A formed from small pieces of rock.
• Rock B formed from liquid rock in a different place.
• Rocks A and B formed at about the same time.
As they work on their study, they need to answer the question: Are Rocks A and B the same or
different types of rock?
The rocks are
a
the same type because they both formed from rock material.
b
the same type because they formed at the same time.
different types because they formed in different places.
d
different types because they formed in different ways.