The top routes that United Airlines flies are: 1  CLT to ORD with 3,755 flights per month. 2  CLT to IAH with 3,511 flights every month. 3  DFW to ORD with 3,486 flights every month.  DFW to EWR with 3,268 flights every 1  month. PHL to ORD with 3,238 flights every month.
The first of the three rock types to form on Earth were the igneous rocks; formed from the cooling and solidification of magma, as the Earth was at one time completely molten. â¦. 4 people found this useful.
As a result of these processes, three main types of rock occur: Igneous Rocks-produced by solidification of molten magma from the mantle. Magma that solidifies at the Earth's surface conceives extrusive or volcanic igneous rocks.When magma cools and solidifies beneath the surface of the Earth intrusive or plutonic igneous rocks are formed.Sedimentary Rocks-formed by burial, compression, and chemical modification of deposited weathered rock debris or sediments at the Earth's surface.he most well-known mineral of this group is halite (NaCl) or rock salt. Figure 10d-6: Halite or rock salt. The Oxides are a group of minerals that are compounds of one or more metallic elements combined with oxygen, water, or hydroxyl (OH).