multiple - choice question how can shale become gneiss? cooling it quickly intense heat and pressure adding…
multiple - choice question how can shale become gneiss? cooling it quickly intense heat and pressure adding silicon and oxygen to the shale
Answer
Brief Explanations:
Shale is a sedimentary rock. Gneiss is a metamorphic rock. Metamorphic rocks form from pre - existing rocks (like shale) under intense heat and pressure, which causes physical and chemical changes. Cooling quickly is related to igneous rock formation from magma or lava. Adding silicon and oxygen in the way described is not the typical process for shale to become gneiss.
Answer:
B. Intense heat and pressure