A wide variety of names are commonly used for petrified wood. Fossilized wood is a general term for wood that has been petrified or preserved by other methods of fossilization. Opalized wood is petrified wood that has been replaced by opal, an amorphous form of silica.
DHS redirects here. For other uses, see DHS (disambiguation). The United States Department of Homeland Security (DHS) is a cabinet department of the United States federal government with responsibilities in public security, roughly comparable to the interior or home ministries of other countries.
Find Your Local Recruiter Here For All Military Branches! Start by understanding the service options, their area of operation, their missions and their us military job offerings. Service Options Five primary component branches comprise the United States armed forces. All are within the Department of Defense except the Coast Guard which is within the Department of Homeland Security. During time of war or national emergency, the Coast Guard functions as a specialized service under the Navy.