16. which is the model of the rock cycle? a. crystallization b. solidification c. heat and pressure d…

16. which is the model of the rock cycle? a. crystallization b. solidification c. heat and pressure d. melting 17. what is a step in the process of changing from sedimentary to igneous? a. crystallization b. deposition c. erosion d. melting

16. which is the model of the rock cycle? a. crystallization b. solidification c. heat and pressure d. melting 17. what is a step in the process of changing from sedimentary to igneous? a. crystallization b. deposition c. erosion d. melting

Answer

Answer:

  1. A. crystallization, B. solidification, C. heat and pressure, D. melting
  2. D. melting

Brief Explanations:

  1. These are common processes in the rock - cycle model. Crystallization is when minerals form from magma or lava, solidification is the change from liquid to solid, heat and pressure can transform rocks, and melting changes solid rock to magma.
  2. To change from sedimentary to igneous rock, the sedimentary rock must first be melted to form magma which then cools and solidifies to become igneous rock. Melting is a key step in this transformation.