A very common one that appeared in the practice papers is something along the lines of how some scientific process (e.g. genetic engineering) impacts on society
Yes, usually it tells you to identify a problem, either with the environment or something like biotechnology and asks to discuss it's impact on society.
Easiest way to answer it is
1. The problem and it's definition i.e. what it is. (Problem)
2. What it's caused by eg. if humans contribute to it. (Cause)
3.The impact on society (effect)
4. Ways to "resolve" these things. (resolution)
5. Opinion, although this isn't necessary. (statement)