Choose the word that is OPPOSITE in meaning to the capital word in question

11.Q9: The water supply is being tested for CONTAMINATION(4 Points)
popullation
pollution
combining
containing
12.Q10: The FUMES from vehicles is a contributing factor to make people cough.(4 Points)
noise
fule
exhaust
water
13.Choose the word that is OPPOSITE in meaning to the capital word in question
Q11: Two years ago, the reduction in water and noise pollution in this city was DRAMATIC.(4 Points)
impressive
normal
marked
traditional
14.Q12: Because warmer water has less oxygen in it, it can HARM fish populations and cause harmful alga blooms.(4 Points)
support
reduce
contaminate
illustrate