A really good way I can help you is by you giving me a question that we can work through together. More general tips would be:
ALWAYS use case studies/examples in your answer to get maximum marks and
Refer to the figure/table used in the question directly by quoting off numbers. Say things like According to Table B,...
Conclude with therefore, climate plays a ___ role in the....
Try using this format and let me know how you get on/send me your answer and I'll check it out. Also, sorry about the generic format, we did rivers and coasts instead of glaciers!