Climate change models must be able to successfully predict modern climates from past climates. To model climates prior to human record keeping we use proxy data. What are examples of proxy data

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.

Answerdistinguish between the mercalli scale and the richter scale;

Answer the collision of tectonic plates;

None of them. they are likely to occur on any plate boundary