Which of the following is considered the most important and yet most threatened ecosystem on the planet? coastal wetlands rainforests coastal ranges argentinian pampas 9. why are there so many earthquakes in south america? south america’s incredible biodiversity lends itself to hazardous conditions. south america’s location atop the nazca and south american plates of the circum-pacific belt. south america’s lack of stable infrastructure and good building codes. south america’s proximity to two major oceans and the equator.

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

Hurricanes a. usually form over land b. usually intensify over land c. gain strength from ocean heat d. usually form over the poles

Which two nations are doing the most to combat their environmental issues?