Question

why has the spread of the herbicide-resistant hydrilla through Florida's waterways resulted in them no longer being navigable by most boats

Answer 1

The answer is: b.-The weed clogs the propellers that the boats use for propulsion.

Step-by-step explanation:

The South Florida Water Administration District (SFWMD) and the Florida Fish and Wildlife Conservation Commission (FWC) are determined to begin on March 2, 2010 the significant effort to control the growth of the hydrilla on 1,745 acres of Cypress Lake. The invasive plant can clog waterways, prevent navigation and affect wildlife.

The answer is: b.-The weed clogs the propellers that the boats use for propulsion.