Sea-level changes choose one: a. are reflected by blankets of marine sediment called methane hydrates. b. have been as great as 300 m (during the phanerozoic eon). c. are periodic, occurring about every 30 million years. d. are termed eustatic if they are local changes.

Bottle deposit programs are one way to encourage higher recycling rates. explain how they work

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 evidence does the writer give to support his argument about coral reefs? a) he speaks of the activities of coral polyps. b) he describes the composition of the great barrier reef. c) he emphasizes the ways in which coral reefs are fragile. d) he points out the ways that scientists do research on the reefs.