Which of the following is not a reason that astronomers have trouble viewing distant stars? a. distant stars give off less light b. lights from cities on earth make it more difficult c. earths atmosphere dims the light coming from distant stars d. our telescopes are not strong enough to see the most distant stars

These factors hinder environmental protection efforts in eastern europe.

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

The mantle is made up of which structural zones?