Disserte sobre a relação entre os serviços básicos de saneamento e a salubridade ambiental.

If a volcano’s magma is high in silica, the volcano will probably a. erupt quietly. b. remain dormant. c. erupt explosively. d. produce dark-colored lava.

Fossils of glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? check all that apply.

Lake victoria lies on its southern border. true or false