A student lists a set of materials 1. Wood
2.hydrogen gas
3. Milk
4. Water
Which materials can be medium through which a wave can travel
A. hydrogen gas
B. wood
C. Milk and water
D. wood, hydrogen gas, milk, and water

D. wood, hydrogen gas, milk, and water

Explanation:

Waves will transmit through wood, hydrogen gas, milk and water.

Waves are disturbances that propagates energy usually through a material medium.

Most mechanical waves pass through the given medium. Only electromagnetic waves do not really require a material medium for their propagation. They can be propagated through a vacuum.

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation: