Which of the following statements is true? a)you are exposed to nuclear radiation every day. b)all natural radiation is at a level low enough to be safe. c)naturally occurring nuclear radiation is called background decay. d)most of the nuclear radiation you are exposed to in the environment is man-made.

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.