What is the meaning of contour ?​

It depends on how the word is used, in some instances it can be an outline, especially one representing or bounding the shape or form of something or the general form or structure of something.

Can you give us more information about this question and i will try to you as much as i can

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.