The primary source of the Sun's energy is:
a) dark energy
b) oxidation of carbon in the core.
c) gravitaional collapse of mass due to the Sun's gravity
d) the fusing of hydrogen into helium.

The dusting of hydrogen into helium. HOPE THIS HELPEDD

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.