20 points quickly give 1 paragraph(talking about earthquakes)discuss how the different types of waves are formed and describe how the waves travel.

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

Why are shark population in decline worldwide?

Permafrost occurs in the tundra and tundra-forest biomes of eastern europe