Explain what causes a volcanic eruption in your own words?

Which sequence of transformations on preimage ∆abc will not produce the image ∆a'b'c'? a. reflection across the line y = x b. rotation 180° clockwise about the origin followed by a reflection across the line y = -x c. reflection across the x-axis followed by a reflection across the y-axis d. reflection across the line y = -x followed by a rotation 180° counterclockwise about the origin e. reflection across the y-axis followed by a rotation 90° clockwise about the origin

Which layer surrounds the center of the earth? a: crust b: core c: mantle

Because its government strictly controls its economy, north korea has a economy. a. command b. mixed c. traditional d. free market