As a glacier moves along the ground, it transports rocks. These rocks pass over the ground and create scratches in the bedrock. Which statement correctly describes these processes? The transport of rocks and scratching of the bedrock are both examples or weathering

The transport of rocks is an example of erosion, and the scratching of the bedrock is an example of weathering

The transport of rocks and scratching of the bedrock are both examples of erosion

The transport of rocks is an example of weathering, and the scratching of the bedrock is an example of erosion

I'm pretty sure there's a geometry rule for   anyways, if the triangle is equilateral, and the circle is circumscribed, the circle is outside of the triangle.  to find the area, you need the radius.  the radius should be a straight line from the center of the triangle to any of it's points.  draw lines from the center of the circle to each of the triangle points.  draw three more lines from the center to the middle of the sides of the triangle.  you should now have six separate 30-60-90 triangles inside of your original triangle. use your 30-60-90 rules to solve for the radius, then the circumference. 

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.