Answer:
Explanation:
Perimeter: perimeter is measured by the length of the shape around. The area of the shape is mostly the exact amount of a two dimensional shape that it covers. The ratio of the perimeter to the area is just the perimeter divided by the area.
coal, copper, lead, iron, natural gas, timber, bauxite, and uranium.
That would be Pyroclastic material
I think the two sources would be drip irrigation which is like a river, lake, groundwater, etc... The second source could be is making a new irragation system that could deliver water faster.
