How can a freshwater estuary be covered under a marine reserve system ? How can a freshwater estuary be covered under a marine reserve system ? Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ You may also like... ________ is a high-frequency transmission medium that has a single solid-copper core. Trade has increased in the last 30 years because of _______________ evolving in importance to facilitate trade. Control rods in a nuclear reactor. Select one: a. remove heat from the reactor core.