Help! Edexcel Geography B unit 3

Can anyone please advise me on how to revise for unit 3, the decision making examination?

I have to do this too! Apparently it's just like a reading comprehension, and then the longer questions towards the end are the actual decision making questions where they give you three options and you have to chose one writing a response about the positives and negatives or something. I'll look over a few past papers or something, and I've already revised it in class with my teacher. If you're alright/good at Geography, I'm sure you'll be fine.

For this exam, there has only been two years before us so past papers are limited.

2 past papers and some practice 9/12 markers is enough revision for unit 3 as there arent exactly any facts to remember: just know how to time yourself and be able to collect concise pieces of data from a booklet