Caregivers must have excellent communication skills, both written and verbal. Even if your client isn't able to communicate through the traditional means of speaking and writing, you'll need to interact with their family members or other caretakers to discuss their care and updates to their condition.
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.