In this example, the US makes 30 million cars and 10 million trucks, whilst Japan produces 25 million cars and 2.5 million trucks. The US has a in trucks. This is because it is better at producing them. Although it is 1.2 times better than Japan in producing cars, it is 4 times better at producing trucks.

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