Most Europeans live . A. in urban areas B. in Eastern Europe C. in Russia D. near the coasts

Witch of the following volcano hazards is made up of rocky particles about the size of a grain of sand

Which city area has the most accessible oil reserves a) caspian sea b) siberia c)arctic coast d)lake baikal

Largest layer of atmosphere international space station orbits ultraviolet radiation causes ionization the phrases describe what layer of earth's atmosphere?