Which force occurs where earths plates are moving apart

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

Can someone me with this plz? ! i'm putting 20 points on it!

During which era in earth's history were the first insects? mesozoic precambrian cenozoic paleozoic