Choose the best answer A, B, C or D to complete the sentence.
Question 12: The polluted water__________ in the death of the fish.
A: leads
B: causes
C: results
D: makes
15 Choose the best answer A, B, C or D to complete the sentence.
Question 10: Too much use of electric lights in cities may cause ___________ pollution.
A: visual
B: water
C: thermal
D: light