Which of the following is NOT given as an advantage of using biological agents over chemical herbicides?
A.They are less likely to destroy desirable plants.
B.They are more easily available.
C.They do not have to be used as often.
D.They are safer for workers.
A.They are less likely to destroy desirable plants.
B.They are more easily available.
C.They do not have to be used as often.
D.They are safer for workers.
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Hóa Học lớp 12
