The collision theory<span> is based on the assumption that for a reaction to occur it is necessary for the reacting species atoms or molecules to come together or </span>collide<span> with one another.\</span>
It's the 4 the answer I hope it has served you
I think the answer would be D goodluck
Tailings
Slurry is a liquid concrete or cement
Impoundments are enclosures of water