Alife-form in the precambrian time was
a. cyanobacteria
c. reptiles
b. humans
d. dinosaurs

Which area on the map would be most likely to have the most oil exploration in since the start of the 21st century? a) b) c) d) plz me

Plzz on what physical process is responsible for the creation of volcanoes, earthquakes and ocean trenches at the plate margins?

¿qué parte de la patagonia está en peligro de exinción por su sobrepesca?