Why is it important to understand the type of volcano mount rainier is and the patterns of activity at the nearest plate boundary?

Because if it is dormant and there is no activity around it then it is safe for people to live around it.

a warm, wet climate will produce the highest rate of weathering. the warmer a climate is, the more types of vegetation it will have and the greater the rate of biological weathering (figure below). this happens because plants and bacteria grow and multiply faster in warmer temperatures.