Question

which factors contribute to changing igneous and sedimentary rocks into metamorphic rocks?
☐ weathering
☐ erosion
☐ heat
☐ deposition
☐ pressure

Explanation:

To determine the factors that change igneous and sedimentary rocks into metamorphic rocks, we analyze each option:

• Weathering: Breaks down rocks into smaller pieces, not for forming metamorphic rocks.
• Erosion: Transports weathered materials, not involved in metamorphism.
• Heat: High temperatures can cause mineral changes in rocks, a key factor in metamorphism.
• Deposition: Lays down sediments to form sedimentary rocks, not for metamorphism.
• Pressure: High pressure (along with heat) causes rocks to change structure and form metamorphic rocks.

So the factors contributing to the formation of metamorphic rocks from igneous and sedimentary rocks are heat and pressure.

Answer:

heat, pressure