An air mass on a map is labeled "mT." Which of the following best describes the air mass? Cold, dry air

Cold, moisture-rich air

Warm, dry air

Warm, moisture-rich air

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.

The rocks expand when there hot/warm  and contract when they are cold.