Why do scientists believe the universe is still expanding? b The further away an object is, the higher the temperature and pressure eventually become, causing nuclear fusion Distant objects shift in frequency toward red on the electromagnetic spectrum, which tells us objects are moving away from us Spiral galaxies spin, so they appear to be a rotating disk of stars and dust Distant objects shift in frequency toward blue on the electromagnetic spectrum, which tells us objects are closer to us us

it’s distant objects shift in frequency toward red on the electromagnetic spectrum, which tells us objects are moving away from us!

Explanation: This is correct because I got this one right on my quiz and I took notes on it!

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

earthquakes in florida are rare because the state is not located near any tectonic plates. in fact, florida is tied for first place as having the fewest earthquakes of any state. much of florida is limestone and seafloor materials that is not conducive to earthquakes.

explanation: