Which statement is true about the rock cycle? a- Once a metamorphic rock is formed, it will always be a metamorphic rock.

b- Heat and pressure that are applied to an igneous rock eventually creates a metamorphic rock.

c- Sedimentation is the primary process that converts a sedimentary rock into a metamorphic rock.

d-When magma pours out on the Earth's surface, it forms metamorphic rock.

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.