Imagine that a sample of sediments are cemented together to form a sedimentary rock. Then, that rock is heated and compressed into a metamorphic rock….

Imagine that a sample of sediments are cemented together to form a sedimentary rock. Then, that rock is heated and compressed into a metamorphic rock. The metamorphic rock is then melted to form an igneous rock. Which of the following statements is true regarding the mass of the rocks?