Sketch the population pyramid of a developed country and a developing country; explain 2 differences​ pls be quick

Describe how ocean currents can affect a moving object ❕❕❕

Which of the following is defined as combinations of soil particles that vary in size and shape?

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