If the contour interval of a map were halved, how many contour lines would be needed to show the same increase in elevation? a. half as many b. twice as many c. the same number

In a 2010 article “fact check: eastern u.s. earthquake risk” by chris mould, the author provides as evidence the following statement by the united states geological survey: “although earthquakes may be less frequent in the eastern u.s., … urban areas in the east could face bigger losses because the shaking would affect much larger areas than similar quakes in the west. in addition, most homes and buildings in the east are not designed to withstand earthquakes.”this statement directly relates to which of the following concepts? a. vulnerabilityb. hazardc. riskd. severity

Witch of the following volcano hazards is made up of rocky particles about the size of a grain of sand

Where the main factor that enabled the growth of cities and civilizations was the existence of