Transported soil is blown away from its parent rock, residual soil remains above its parent rock.
If my memory serves me well, the answer should be: When the Congo River reaches Kinshasa, <span>it flows slowly into the Atlantic. Congo River is the second largest lake in the world. It takes a long way to reach the Atlantic: In the middle it flows towards Matadi and divides into several arms and finally it freely flows into the Atlantic.</span>
4.6 billion years ago - most likely hydrogen (H2) and helium (He)
probably rich in hydrogen compounds like methane (CH4), ammonia (NH3), hydrogen cyanide (HCN), water (H2O), and formaldehyde (HCHO). Also some N2, CO2 but LITTLE or NO free oxygen.
Molecules of H2 and He move really fast, especially when warm, that they eventually all escaped Earth's gravity and drifted off into space.
