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
Answer:
Major types include fats and oils, waxes, phospholipids, and steroids. Fats are a stored form of energy and are also known as triacylglycerols or triglycerides. Fats are made up of fatty acids and either glycerol or sphingosine.
Explanation:
The white dwarf will be surrounded by an expanding shell of gas in an object known as a planetary nebula. They are called this because early observers thought they looked like the planets Uranus and Neptune. There are some planetary nebulae that can be viewed through a backyard telescope. :) I hoped this helped !
