Which term covers phenomena like floods, fires, tornados, and earthquakes?

Which term covers phenomena like floods, fires, tornados, and earthquakes?

• A. Natural
• B. Environmental
• C. Physical
• D. Operational

Answer: (A)

These events come from natural processes in the Earth's systems—weather, geology, and related forces. Floods, fires (often lightning-ignited, though many fires are human-caused), tornados, and earthquakes are all phenomena that arise from nature rather than human design. The label that fits best is natural, because it denotes events originating in nature itself. Environmental would focus on surroundings or ecosystems rather than the events themselves, physical would refer to material properties or physics in a broad sense, and operational relates to how systems or processes are run. So, the natural term captures these events as natural phenomena tied to the environment.