The air temperature is 25 °C and an air column carries a standing sound wave at a frequency of 340 Hz. What is the
length of the air column, which is closed at one end, if it is
designed for the third harmonic? K

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 correct choice is c