How are em waves and mechanical waves different? * check all that apply 5 points em waves can travel through a vacuum. all em waves are transverse mechanical waves must have a medium. all mechanical waves are longitudinal. some mechanical waves are longitudinal.

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.