Answer:
Basically, observation can be defined as the action or process of observing something or someone carefully or in order to gain information, in other words, watching or analyzing something so as to know more about it. For example, if a biologist wants to observe the behaviour of a specific kind of animal in the wild, that person will have to watch and focus on what that animal usually do, what it usually eats, how it hunts or find food, etc, in order to know more about the animal itself.
Explanation:
What is the name of this website or the book?
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.