SC.7.E.6.1 pls give notes on: Describe the layers of the solid Earth,
including the lithosphere, the hot convecting
mantle, and the dense metallic liquid and solid
cores.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

i think its 100.

hope this !

answersilicon (si); oxygen (o);