Read the paragraph and choose the best main idea sentence.
Some big factories pour poisonous, unwanted things into water, killing fish and endangering the water for drinking. Careless people who drop litter make public parks into dirty places. Burning garbage turns the air unclean for mile around. Junkyards full of used, useless cars, can be found in large numbers throughout the countryside. Yes, signs of destruction of living space can be found everywhere.
Select one:
a.
Burning garbage turns the air unclean.
b.
Destruction of living space can be found everywhere.
c.
Factories pour poisonous, unwanted things into water.
d.
Junkyards can be found throughout the countryside.