Answer:
There are some countries that its like there were in the paradise and some countries have nothing or sometimes less than that's country with à lot of water
Answer:Geographic featured that acted as norther borders of the Roman Empire at its height were: Rhine River, Danube River, Carpathian Mountains, and the Black Sea.
<u>Answer:</u>
<em>Latvia is </em><em><u>G</u></em>
<em>Ukraine is </em><em><u>F</u></em>
<em>Poland is </em><em><u>A</u></em>
<em>Bulgaria is </em><em><u>H</u></em>
<em>Bosnia and Herzegovina is </em><em><u>D</u></em>
<em>Slovakia is </em><em><u>B</u></em>
<em>Russia is </em><em><u>E</u></em>
<em>Croatia is <u>C</u></em>
The explanation for the differences in wavelength observed from earth and a distant star with a shift towards the red end of the spectrum is the Redshift- Doppler effect.
<h3>What is the Doppler effect?</h3>
The Doppler effect is the difference that occur between the frequency of a wave in relation to observer from the wave source.
The wavelength changes with change in the frequency.
<h3>How does the Doppler effect explain the redshift?</h3>
As an object moves away from Earth, the waves moves to the red end of the electromagnetic spectrum and becomes elongated. This results to the increase in wavelength.
Therefore, the explanation for the differences in wavelength observed from earth and a distant star with a shift towards the red end of the spectrum is the redshift-Doppler effect.
Read more on Doppler effect here:
brainly.com/question/4052291
#SPJ1
The Rocky Mountains are described as younger because the Rocky's are really two mountain chains. The older mountain chain started billions of years ago, and the younger mountain chain pushed the older mountain chain up more, only 60 millions years ago.
