which of the following cell is also called rechargeable battery. . primary cell., secondary cell,. dry cell., none of these.

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

answer; coat color for blending in with dry grass;