Awater main is to be constructed with a 12.512.5% grade in the north direction and a 2020% grade in the east direction. determine the angle thetaθ required in the water main for the turn from north to east.

answer and explanation;

composition refers to both the types of minerals within a rock and the overall chemical makeup of the rock while texture refers to the size and arrangement of the minerals or grains that make up a rock. both composition and texture can be used to classify rocks, such as igneous rocks. texture describes how the rock became solid or crystallized from liquid, melted rock. composition of a rock describes the minerals that make up a particular rock.