explain how life isn't in the underwater world?
95196
isnt it obvious? we cant breath underwater.. unless we have gills like the fishes!!!
815771
Well plants are organisms that don't breathe in oxygen. They breathe in carbon dioxide.
1094383
Under what conditions?\n\nI recall seeing an article about a hotel in the Florida Keys that has made a series of underwater "bungaloes" that guests need to SCUBA dive down to, and out of.  Looks like it would be interesting.  And there are deep-sea researchers that live at depth for some time.\n\nBut either one requires a great deal of support at this time, since none of them could be considered self-sufficient.  Perhaps in the future?
5565
First you have to define life.   Unfortunately by the standards we use today light and gas cannot be considered lifeforms because they cannot reproduce and carry out other life functions.
408320
Very niave!  We have been shown that there are other living organisms on other planets that we have have snet out to study.  Just because they are not in human or (our) peoples form does not mean that the planet is not alive. We have also been shown to where some planets have shown previous life on them.
159286
Its very important as it breathe and produce loads of oxygen. Even though its under water it balance total environment. \n\nI hope the first answer didn't serve you..!
683367
skin and organs which are adapted to face damn high pressure\nsome bacteria to produce artificial light\nuses fluorescent tentacles to lure prey.\n\nThe deep sea is also an extremely hostile environment, with pressures between 20 and 1,000 atmospheres (between 2 and 100 megapascals), temperatures between 3 and 10 degrees Celsius, and a lack of carbon dioxide.\n\nIt has also been found that the deeper a fish lives, the more jelly-like its flesh and the more minimal its bone structure. This makes them slower and less agile than surface fish.
497415
both living and non living things can live in the salt.non living things like sand etc.living things like fishes etc.
1159589
Life needs an energy source to exist.  For most of the life in the oceans that is the sun.  However there are thermal vents at the bottom of the ocean.  The animal life discovered at these sites are nothing like we have ever seen before.  When they initially discovered this animal life, they tried to bring it to the surface but it could not deal with the change in gravity and exploded before it got to the surface.  Now there are different means of observing this phenomenon.
479513
During pregnancy, there is a stage where the human fetus has gill slits, but by the time a baby is able to survive outside it's mother, these have disappeared.  Babies, as we would think of a baby, can NOT breathe underwater- they have air breathing lungs, just like you, and would drown.\n\nThere is something called the mammalian dive reflex, which slows respiration, and can allow someone to survive for a short time (perhaps a few minutes depending on the circumstances) under water just from the oxygen they receive from the water, however this works best in very cold water, which has more dissolved oxygen.  People with smaller bodies, like babies and young children are more likely to survive longer under water.  This is where stories of kids serviving under lakes for long periods (15 min, or so) come from.
140008
I'll tell you if you promise not to remove the question and cheat me out of the hard-earned points. I thought I gave you a good answer to your question on P and S waves, so I was disappointed to see the question removed. \n\nCoral lives in a very small zone of water depth. Most true coral can only survive where there is lots of sunlight and oxygen in the water. It needs this because it depends on catching small plankton with their tentacles. Most plankton and zooplankton live in the shallow zone where there is lots of light.\n\nIf the water depth changes, as it can when some volcanic islands slowly sink, or if there is a lot of sediment in the water from ersoion, the coral can't move and will simply starve. There is other evidence that coral is being killed by higher levels of UV light penetrating the atmosphere. \n\nHere's link with some basic information:\nhttp://saltaquarium.about.com/cs/coralcare/a/aa022103.htm
438713
your right. i also believe that life on another planet dosent need to have water present to sustain life.\n\nits just that they are trying to find life on other planets and if they find water there is a chance that there was or is life on other planets.
766856
THERE'S A LOT OFspace in the ocean \nthe water deeper inthe ocean is slightly  hot coz of high pressure \nthus fish survive compensating the dverse conditions
995214
Life is resilient as we are finding out more each day.It is now known that light is NOT required for life as was believed a few short years ago.Some lifeforms can remain dormant for miilions of years.Basically the answer is "if there is a will,there is a way".
908662
good one... like there is Tsunami...a low pressure area in water body.Why there is no air movement.\nThere may be a little movement which is not highly noticeable.
1158302
OMG!!!  We would all be forced to live in the mountains because everywhere else would be underwater. Thank you Sponge Bob for keeping us high and dry.\n\nActually no difference. They are saturated in water that would have been there anyway. And the solid parts are made from the minerals and organic compounds which already existed in the ocean. I believe that any calculation or measurement for ocean depth/volume would be the same with and without sponges.
990256
Non-living. It cannot reproduce by itself, cannot regulate homeostasis, depends/hijacks other hosts for reproduction. It's mostly leftover/waste DNA of some bacteria/protist that ejects their DNA into the air with a protein capsule to reproduce, although this didn't work.