Answer:
industrial wastes dumped into rivers
Explanation:
Because when factory and other industries dumped their wastes into water they begin to react on environment and fishes will die and that water or river smell so bad
One reason is because they consist of many different types of tissues.
I think the answer is "ARE NOT"
Answer: A) Atom, Molecule, Cell
Explanation: An atom is the smallest unit of ordinary matter. Atoms can join together to form molecules, which in turn form most of the objects around you. And molecules join together to form cells.