What is made up of water elements on the earth including oceans rivers lakes and water in the atmosphere?

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

The layers of earth are based on what two sets of characteristics?

1. crust 1 the metallic layer at the earth's center 2. inner core 3 the firm layer between the crust and the asthenosphere 3. lower mantle 2 the layer surrounding the inner core 4. asthenosphere 4 the semi-solid layer between the top layer and the upper mantle 5. upper mantle 5 the layer between the asthenosphere and lower mantle 6. top layer 6 the earth's outermost layer 7. outer core 7 the hottest part of the mantle