What is the si units of mass and weight?

SI unit for mas is Kg and the SI unit of weight N for newton

The kilogram is the SI base unit of mass and is equal to the mass of the international kilogram, a standard weight that is kept at the International Bureau of Weights and Measures.

The SI unit of weight is the Newton (N).

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.