50 prey sure 48 raptor lake elevation 45 ft 56 cl = 10 construct the contour map.

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.

Ido believe it is b 

They are bacteriathey belong to another group of living things or its neither

C.     is the right answer because it is ask about the soil types has the richest in organic material.

good luck