Read the passage carefully and answer the following questions:

Protecting the health of coastal waters is now a matter of national policy in many countries including the United States of America. World leaders are beginning to prescribe a revolutionary remedy that conservationists have been promoting for years: marine planning and zoning. The idea is a natural extension of management policies that have guided the cities and landscapes for nearly a century. Zoning advocates envisioning a mosaic of regional map in which every watery space on the planet is designated for a particular purpose. Drilling and mining would be allowed only in certain parts of the ocean; fishing in others. The most critically threatened areas would be virtually off-limits. Whereas people can easily find maps telling them what they can do where on land, the marine realm is a hodgepodge of rules emanating from an army of agencies, each one managing a single use of symptom.

Question-5

Why protecting the health of the oceans is necessary?

for our co-existence 

Ans-3