Which list is ordered from most dense to least dense based on the picture?

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.

Which of the following list the divisions of the geologic time scale in order from longest to shortest