Hey does any boy wanna date me im 14 and im a girl i live in pike ky

Certification programs are offered by all of the following except

Land is to arable ; river is a, navigable b, shallow c, presumsor d, water

Zachary has been trying to work on an essay for almost three hours, be he can't seem to focus for more than 15 or 20 minutes at a time. what should he do so that the quality of his work doesnt suffer because of poor concentration and lack of energy