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I think,

first, to get O2.

second, to help them self in movement.

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11y ago
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Q: Why does the fish in the seawater need to drink large amount of water?
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Related questions

What is the definitoin of salt water?

-noun1.water containing a large amount of salt. 2.seawater.


How do you turn seawater into a drink?

Seawater can be turned into drinkable water through desalination.


What do sea birds use for drinking water?

sea birds drink seawater! what else! :) sea birds drink seawater! what else! :)


Can sweaty horses drink a large amount of cold water at once?

no


What will a person suffer if they drink a large amount sea water?

YeS


Can you die if you drink water fastly on a empty stomach?

You can, but you have to drink a ridiculously large amount. A normal quantity of water will do you no harm, whether on an empty stomach or not.


Explain why seawater could decrease crop production. Could anyone answer this with water potential in the explanation?

Because the salt in the seawater dries it up. Salt is very bad for any form of plant


Can you take sea water and drink it?

On average, seawater in the world's oceans has a salinity of about 3.5%. This means that every kilogram, or every litre, of seawater has approximately 35 grams (1.2 oz) of dissolved salts.Accidentally consuming small quantities of clean seawater is not harmful, especially if the seawater is consumed along with a larger quantity of fresh water. However, drinking seawater to maintain hydration is counterproductive; more water must be excreted to eliminate the salt (via urine) than the amount of water that is gained from drinking the seawater itself. The effect of seawater intake has also been studied in laboratory settings in rats.This study confirmed the negative effects of drinking seawater when dehydrated.


Why water from seas cannot be drink?

sea water contains large amount of salts. drinking sea water causes polyurea


Will water dilute an etg test?

Water can dilute an ETG test. However, you will have to drink a large amount of water for the dilution process.


Why can you not drink sea water?

The salt content is too high. In any large amount it would kill you.


Is it safe to drink sea water?

No, it is not. Not only is the salinity far too high, but there is a large amount of bacteria in any ocean water.