If stranded on a deserted island with no freshwater it is not advisable to drink sea water why not?

Body gets dehydrated after drinking salty sea water

Explanation:

Human urine consists of salt that is lesser in quantity as compared to the salt content with in salty sea/ocean water.

Generally, if we drink much of salty water our body tries to remove excess salt through urination thus a large amount of water is expelled out of our body  . As compared to the water taken in, the rate at which it is removed becomes much faster.

Hence, after drinking salty water our body gets dehydrated and in severe cases excess of sodium causes coma, organ failure and even death

answer: every time you get a disposable straw, it eventually gets thrown away. many of these straws, along with other plastic trash, ends up in the ocean, where it can harm or kill sea turtles and other marine wildlife. straws can get up a sea turtle's nose, or a sea turtle can eat the straw, because it thinks it's food.