In which country is the angel falls, world's highest uninterrupted waterfall?

What's a recharge area? a. the part of an aquifer where groundwater meets a lake or stream b. the part of an aquifer where surface water reaches the water table c. the part of an aquifer that's located between two aquicludes d. the part of an aquifer that's located at a lower elevation

In which layer of the atmosphere are the particles so far apart that they can travel hundreds of kilometers without colliding with each other? a. exosphere b. troposphere c. mesosphere d. thermosphere

Can some one write for me a paragraph about geographical connection of oil,