Explain the processes of diffusion, facilitated diffusion and active transport. Why are each of these processes important to cells?

i think the answer is 95 hope this

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

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bioteacher101