A student is proposing a model for the hydrologic/water cycle. The teacher asks that the student refine the model in order to more accurately reflect the amount of water in each of the types of reservoirs. Which revisions should be made to the model in order to more accurately reflect the amount of water in each reservoir? select all that apply.

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It depends on the subject for me. some exams are easier than others so i usually go through it and answer questions i know based on my general knowledge, then double check after. going through the lesson can a lot  because the exams can be  very lesson-specific, but sometimes they are ridiculously long so a lot of people don't take the time. i did find that, when i went through the lessons, i was making 100's on my exams vs strictly using + the internet and  i make 90's.