Introduction of Forest Science

Yesterday, I faced first day for mid-exam in this semester. I'm repeating a lecture for the second time to fix the mark. Do you know? I got D for lecture "Introduction of Forest Science". So I think it is the rational reason to repeat this lecture. 

This is question of my first mid-exam in this semester:

After you've gotten the lecture "Introduction of Forest Science". Describe about forest according your opinion!

For 4th year students, this question is very not difficult. We just need to remember about all of lectures we got before and synthesize them to answer this question. 

And I need your prayer to get a better mark, at least B. :)