More: Gulf Trade ...
Rock is an aggregation of solid matter composed of one or more of the minerals forming the earth's crust. The scientific study of rocks is called petrology. Rocks are commonly divided, according to their origin, into three major classes - igneous, sedimentary, and metamorphic.
Not all rock-like materials are created by nature. Almost all civilizations have depended to some extent on artificial building materials, the most common of which are concrete, brick, and asphalt.
More: Rock & Stone ...
New Jersey scuba divers provide evidence of the identity of a popular New Jersey dive site
More: Identifying The Emerald ...
More: United States Coast Guard 2 ...
Carcharias taurus
Size:
to 11 ft
Habitat:
coastal waters
Notes:
dangerous if provoked, usually unaggressive
Sand Tiger sharks have a broad inshore distribution. In the Western Atlantic, this shark occurs from the Gulf of Maine to Florida, in the northern Gulf of Mexico, in the Bahamas, and in Bermuda. The sand tiger shark is one of at least four species belonging to the family Odontaspididae. Synonyms include Carcharias taurus, Eugomphodus taurus, and Carcharias arenarius.
More: Sand Tiger Shark ...
We seldom consider the water we dive in, yet it is a fascinating subject in its own right.
Water is an odorless, tasteless, transparent liquid that is colorless in small amounts but exhibits a bluish tinge in large quantities. It is the most familiar and abundant liquid on earth. In solid form ( ice ) and liquid form it covers about 70% of the earth's surface. It is present in varying amounts in the atmosphere. Most of the living tissue of a human being is made up of water; it constitutes about 92% of blood plasma, about 80% of muscle tissue, about 60% of red blood cells, and over half of most other tissues. It is also an important component of the tissues of most other living things.
More: Water Composition ...
More: Miraflores ...
