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    1. n. the process of becoming worse

    2. Adj. poisonous

    3. Adj. long-lasting

    4. v. to attract

    5. n. the total amount available

    6. v. to cause serious damage; weaken

    7. n. material

    8. n. the period between two times

    9. v. to come from; originate

    10. n. a study