Answer:
An event can cause changes to occur in one or more of the spheres, and/or an event can be the effect of changes in one or more of Earth's four spheres. This two-way cause and effect relationship between an event and a sphere is called an interaction. Interactions also occur among the spheres.
Yes we never know what could happen in an eco system
The best answer to your question is large headed grasshoppers, prairie dogs, and blue grama
