Usually, the AP examination is much harder than the Natural Sciences CLEP. You could look at it but it would not provide as much usefulness as other resources. Take a look at the Specific Exam Feedback Section of this website for more help. I know a bunch of people who took this AP exam and did not do as well as they thought. The Natural Sciences CLEP includes much more than just environmental sciences. Good Luck!

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Passed
Intro to World Religions 68, Social Science and History 60, Principles of Statistics 60,Western Civilization I 58, Intro to Sociology 55, Astronomy 54, Technical Writing 54, Humanities 50

Courses @ TESC
C Programming - C
Electronic Instrumentation and Control - A


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Retaking the English CLEP