why do you think scientists divide earth into spheres?

Brief Explanations:

Dividing Earth into spheres (lithosphere, hydrosphere, atmosphere, biosphere etc.) helps in studying Earth - its components and interactions. It simplifies complex Earth - systems, allowing scientists to analyze and understand the physical, chemical, and biological processes in each sphere and how they interact with one another.

Answer:

To simplify the study of Earth's components and their interactions.