Any collection of things that have some influence on one another can be thought of as a system. The things within a system can be almost anything, including objects, organisms, machines, processes, ideas, numbers, or organizations. We can model a system or a portion of a system This diagram illustrates the part of the Earth system: what occurs when a volcano erupts and how it impacts the near-by atmosphere.

Question

Think about the model as a system. What key feature of volcanic activity is NOT necessary or included in the model?
Responses

A The components of the ash cloud.The components of the ash cloud.

B The tectonic activity that caused the volcano. The tectonic activity that caused the volcano.

C Acid rain production as a result of volcanic activity.Acid rain production as a result of volcanic activity.

D How the gases from the volcano interact with the ozone.

Answer 1

The key feature of volcanic activity that is NOT necessary or included in the model is:

B The tectonic activity that caused the volcano.

This is because the model focuses on the effects of a volcanic eruption (like the impact on the atmosphere) rather than the geological processes that led to the eruption itself. The other options relate to the immediate consequences and interactions resulting from the eruption.