-consists of objects (i.e. html file, jpeg image)  -web page consists of base html-file which includes several referenced objects  -each object is addressable by a url
consists of objects: html file, jpeg, java applet, audio. consists of base html-file which contain referenced objects. object is addressable by a url.
In Lytle Creek Canyon , a 4-foot-high mud flow crossed a road , trapping a car .