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The OCEAN: A Place of Many Habitats.(Brief Article)
The waters of the oceans provide the plants and animals that live in them with the oxygen and food they need to survive. Different kinds of plants and sea creatures live at different levels of an ocean.
Light penetrates the ocean's water only to a certain depth. That sunlit zone of ocean water is called the photic zone. The plants and animals living there are different from those living in lower depths, which receive very little sunlight.
Plants and animals living in the darker zones of the ocean's waters have developed adaptations to help them survive where there is little sunlight and little food.
Sea creatures living near the bottom of an ocean, in a pitch-black zone called the abyss, also have adaptations that help them survive in this harshest zone of the seas. Sea creatures in the abyss tend to be small and are equipped to capture prey they can't see.
RELATED ARTICLE: The Differences Between Fresh and Salt Water
Aside from the sunlight that penetrates the sea, other properties of sea water also determine which plant and animal life can survive in it.
what to observe
- Estuary Zones: Where salt water meets fresh water (Part 2 of 2)
- Picture from: Earth Explorer February 1, 1995 700+ words
...01-1995 Estuary Zones: Where salt water meets fresh water Distinct zones develop as salt water from the ocean mixes with fresh water...extreme low tide Estuary zones: Where salt water meets fresh water Least salty High marsh Many plant...
- Estuary Zones: Where salt water meets fresh water (Part 1 of 2)
- Picture from: Earth Explorer February 1, 1995 700+ words
...01-1995 Estuary Zones: Where salt water meets fresh water Distinct zones develop as salt water from the ocean mixes with fresh water...extreme low tide Estuary zones: Where salt water meets fresh water Least salty High marsh Many plant...
- OCEAN LAYERS.(salt water and fresh water experiment; differences in ocean water)
- Magazine article from: Appleseeds Noyes-Hull, Gretchen Wildrick, Ben May 1, 2001 700+ words
...Which Is Heavier--Salt Water or Fresh Water? You Need 2 clear glass...down the inside of the fresh-water container. Answers Salt water is heavier and ends...water is heavier--salt water or fresh water? Which Is Heavier...
- The Negev Research Experimentation Station is a computer controlled irrigation...
- Picture from: Magnum Photos Dennis Stock January 1, 1984 700+ words
...Experiments are being made of how to use salt water, the yellow pipe contains fresh water from the National Water Carrier system...experiments are being made of how to use salt water, the yellow pipe contains fresh water from the national water carrier system...
- Offshore water hole. (storing fresh water in salt water)
- Magazine article from: Popular Science Scott, David June 1, 1988 700+ words
...t even need a bottom: Fresh water floats on salt water, and the two don't mix. Finding fresh water for drinking, cooking...based on the principle that fresh water is lighter than salt water," Dunkers told me...
- Salt water intrusion threatens to taint coastal wells in South Florida.
- Newspaper article from: South Florida Sun-Sentinel (Fort Lauderdale, FL) July 6, 2007 700+ words
...t use our wells, that salt water is coming in." Not so...susceptible areas can stop salt water from fouling the underground fresh water South Florida shares. And...line in the defense against salt water moving into South Florida...
- Brackish water supply enhancing fresh water availability.
- Magazine article from: Public Works Wiley, Dave Brotherton, Robert H. September 1, 1994 700+ words
...tends to draw this salt water vertically into the fresh-water zone of the aquifer...reducing future salt-water intrusion into fresh-water zones. As part...pressure. Diluting salt water with available fresh water requires less pressure...
- New Zealand Red Cross provides fresh water unit to Niuatoputapu in Tonga
- News wire article from: Xinhua News Agency October 9, 2009 700+ words
New Zealand Red Cross provides fresh water unit to Niuatoputapu in Tonga WELLINGTON, Oct...island kingdom of Tonga to deliver a unit that turns salt water into fresh water to the northern island of Niuatoputapu. Nine people...
