"Underwater" redirects here. For other uses, see Underwater (disambiguation).
Great Barrier Reef, Australia
An underwater environment is a environment of, and immersed in, liquid water in a natural or artificial feature (called a body of water), such as an ocean, sea, lake, pond, reservoir, river, canal, or aquifer. Some characteristics of the underwater environment are universal, but many depend on the local situation.
Liquid water has been present on Earth for most of the history of the planet. The underwater environment is thought to be the place of the origin of life on Earth, and it remains the ecological region most critical to the support of life and the natural habitat of the majority of living organisms. Several branches of science are dedicated to the study of this environment or specific parts or aspects of it.
A number of human activities are conducted in the more accessible parts of the underwater environment. These include research, underwater diving for work or recreation, and underwater warfare with submarines. It is hostile to humans in many ways and often inaccessible, and therefore relatively little explored.
and 25 Related for: Underwater environment information
An underwaterenvironment is a environment of, and immersed in, liquid water in a natural or artificial feature (called a body of water), such as an ocean...
underwater diving environment, or just diving environment is the natural or artificial surroundings in which a dive is done. It is usually underwater...
or isolated by a pressure resistant suit, to interact with the underwaterenvironment for pleasure, competitive sport, or as a means to reach a work site...
The diving environment is the natural or artificial surroundings in which a dive is done. It is usually underwater, but professional diving is sometimes...
Underwater diving, as a human activity, is the practice of descending below the water's surface to interact with the environment. It is also often referred...
structure and its fixtures, but not its surrounding marine environment. Most early underwater habitats lacked regenerative systems for air, water, food...
including microplastics, ocean acidification, nutrient pollution, toxins and underwater noise. Plastic pollution in the ocean is a type of marine pollution by...
underwaterenvironment. Oxygen arc cutting and arc welding underwater requires greater skill and stamina than working in a dry and stable environment...
and hence a dry environment. It is predominantly referred to as "hyperbaric welding" when used in a dry environment, and "underwater welding" when in...
An underwater firearm is a firearm designed for use underwater. Underwater firearms or needleguns usually fire flechettes or spear-like bolts instead...
Underwater exploration is the exploration of any underwaterenvironment, either by direct observation by the explorer, or by remote observation and measurement...
underwater diving: Underwater diving – as a human activity, is the practice of descending below the water's surface to interact with the environment....
The science of underwater diving includes those concepts which are useful for understanding the underwaterenvironment in which diving takes place, and...
Underwater construction is industrial construction in an underwaterenvironment. It is a part of the marine construction industry. It can involve the...
or isolated by a pressure resistant suit, to interact with the underwaterenvironment for pleasure, competitive sport, or as a means to reach a work site...
significantly or partially underwater. They prominently feature maritime and underwaterenvironments, and other underwater aspects from the nautical fiction...
Underwater photography is the process of taking photographs while under water. It is usually done while scuba diving, but can be done while diving on surface...
the underwater environment. This article lists the types of underwater vehicle, with a brief description of each type. An underwater vehicle can be crewed...
The use of this equipment allows the snorkeler to observe the underwaterenvironment for extended periods with relatively little effort, and to breathe...
world's first underwater sculpture park was open for public viewing. Taylor's aim was to engage local people with the underwaterenvironment that surrounds...
using the equipment and dealing with the general hazards of the underwaterenvironment, and emergency procedures for self-help and assistance of a similarly...
An underwater survey is a survey performed in an underwaterenvironment or conducted remotely on an underwater object or region. Survey can have several...
or dive as tourists at more distant venues known for desirable underwaterenvironments. An economically significant diving tourism industry services recreational...
operated underwater vehicle (ROUV)[citation needed] or remotely operated vehicle (ROV) is a free-swimming submersible craft used to perform underwater observation...
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