Which climate region of china has the lowest population density, due to its harsh temperatures and terrain?

a. subarctic
b. subtropical
c. temperate
d. tropical

Exactly what kind of weather conditions would a cold front produce?

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted

The creation of the trans-siberian railway allowed people to travel across russia. how could this railway impact russian culture?