Describe the total population aged 0-4 is expected to change between 2010 and 2030

Explain how the density of ocean water is affected by temperature and how this results in major ocean currents distributing heat away from the equator toward the poles?

The lines marked by the letters a, b, and c on the map above represent a. chains of volcanoes b. earthquake fault lines c. thin strips of heavy forests d. major rivers that flow from north to south

Which types of seismic waves travel through earths interior? select all that apply. a) l waves b) p waves c) s waves