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concentration

mastery

UK /ˌkɒn.sənˈtɹeɪ.ʃən/ US /ˌkɑn.sənˈtɹeɪ.ʃən/noun

card 1 of 10 · antonym

Which word is most opposite in meaning to **concentration** in the sentence below?

The concentration of factories in this area has led to serious pollution.