Consider the reaction below. H2PO4 + H2O
-
H30* + HPO 2-
Which of the following is a base-conjugate acid pair?
A. H2O and H20
B. H20 and H2PO4-
C. H2 PO4- and HPO 4 2-
D. H 2PO4- and H30+

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary