Which of the following is not evidence of sea-floor spreading?
a. analysis of seafloor sediments
b. the alternation of polarity in segments of the ocean floor
c. the distribution of ice sheets across the planet
d. the relationship between earthquakes and plate boundaries

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

What's erosion? a. the breakdown of rock into smaller pieces b. the removal of weathered products from rock c. a change in rock resulting from exposure to water d. a chemical change in rock that weakens it

The coco river is a natural border between nicaragua and which other country