Chromium OS. Chromium OS is an open-source project that aims to build an operating system that provides a fast, simple, and more secure computing experience for people who spend most of their time on the web. Here you can review the project's design docs, obtain the source code, and contribute.
1 Common orange â There are many varieties of common orange and it is widely grown. 2  The most common varieties of common oranges are the Valencia, Hartâs Tardiff Valencia, and the Hamlin, but there are dozens of other types.
The province of Valencia is the region of Spain that is known for  the production of oranges. Some types of oranges grown here are  navel and navelina varieties. Spain is thâ¦e leading producer and  exporter of oranges in Europe.