Based on fault trenching work, geologists can use broken soils (that geologists date in a lab using charcoal) to identify past earthquakes. What is the average duration between hayward fault earthquakes indicated by these data? use the average calculated for the past 12 earthquakes.

Dlive among other english speakers

Dall of the above all of the choices make sense

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.