3. Urea is used as a what.
4. The insecticide is a chemical substance that kills what
5. D.D.T. is used as a what.
6. Penicillin and Teramycin are used as what.
Give correct answer then only I will mark you as brainlest
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Answer:
urea is used as fertilizer
insects
combat malaria
penicillin is used to control bacteria, tramycin is injected to dogs and cats with superficial ocular infections
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