19. One long-lasting effect of a pandemic influenza is that: A. Survivors may develop severe psychological problems B. Some victims may not be identifiable through usual identification methods C. Families will not be able to claim their relatives' remains as the virus 'gases out' D. The population must be concerned about the virus returning in subsequent years

A.

Explanation:

survivors may develop huge psychological problems due to the remaining options in the question

the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

explanation:

easy

explanation: