A student created the data table below using a computer simulation of coal consumption and a human population. What do the data from the simulation
illustrate about the relationship between the management of coal resources
and human population growth?

the dark variety, as they are not visible on the dark tree barks

explanation:

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.