Copepod, (subclass Copepoda), any member of the widely distributed crustacean subclass Copepoda. Copepods are of great ecological importance, providing food for many species of fish. Most of the 13,000 known species are free-living marine forms, occurring throughout the world's oceans.
Limestone is the correct answer
Answer:b. One of the most significant environmental issues is the large quantity of waste produced by businesses and society.
Explanation:
A pollution is a drawback for the development of the environment. The pollution is produced by the liberation of toxic chemicals, agents or even sound at high volume. It disturbs the natural balance of nature. The pollution can be caused by the liberation of toxic wastes from the production businesses and societies. This causes harm to the society by deteriorating the natural environment.
