What was one result of the Potato Famine? The Irish broke away from the Roman Catholic Church. The Irish were grateful to the English for giving aid. The Irish blamed the English for lack of help.

This is all you, but i can give you some topics that you could try. if it rained when you want to do something outdoors, it 'limits' that human activity. maybe you want to do an experiment that goes throughout the whole year and you have to have above freezing the entire year. this 'limits' your activity. i thought of those just off of the top of my head. something that gets to me that might be getting to you is you are thinking too hard about what to do. think simply, and if it is too simple, then bump it up just a little bit.

Answer(a); // soil salinization and waterlogging;

Forms from the water cycle