Answer:
A
Explanation:
are attracted to other types of particles.
Earth's crust is made of rock, and rock is made of natural substances called minerals. There are three main types of rock: sedimentary, igneous, and metamorphic rock. Each type is produced in different ways. The oldest rocks on Earth were formed about 3.8 billion years ago.
A dependent variable is one whose value depends on another variable. Hope that helps you answer the question!
