Research the enzyme bromelain, ec 3.4.22.33.indicate i) the class of enzymes to which it belongs to, ii) name the kind of bond that is modified due to its activity, iii) the degree of substrate specificity and iv) how it affects your experience when eating pineapple. must be less than 50 words total

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.