Answer:
laws that are made to keep certain people out of a country.
Pacific and north american
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.
As the geology on an expedition to a newly discovered, earthlike planet,to located the first permanent settlement in order to avoid an earthquake zone, you considering avoiding a location with: a. a young mountain range along a continental coast.
hope this help