Convection currents in the earth's mantle cause plate movement which can cause all except
a) earthquakes
b) hurricanes
c) tsunamis
d) volcanoes

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

idk im sorry.

all these collisions do one thing, and that thing is explained in the last option. when dusst, rocks and ice collide, they harden and form giant layers of rocks or hard ice.

d)   to harden materials to form different parts of earth’s layers

hope it ,

bioteacher101