Which does a reference point provide? select 2 correct choices.
1-a position from which to measure future distance
2-a set of standard units for measuring displacement
3-a standard method for evaluating variables
4-a method for determining the speed of an object
5-a way to detect an object's motion

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.

You would need to take a picture so i can see