Lake Eyre, Lake Torrens and the other salt lakes of outback South Australia are all very shallow. They cover a huge land area, but because they are so shallow there is a very high evaporation rate.
They are fed by the rivers that come down from northwest Queensland, in the Gulf country. These rivers occasionally flood as a result of the summer monsoonal rains in the north, but they do not flood every year.
Water is usually considered hypotonic because of its properties. It contain very little or no solute at all dissolved in it.
not usually - but it can do - and certainly will contain traces
because they save water
The majority of pools usually contain water.
not usually - but it can do - and certainly will contain traces
Ballast tanks contain water, usually sea water.
Rain water is usually fairly clean, but it can contain pollutants from the air.
silt is just little pieces of rock that the water has flowed across
The central vacuoles contain little water in the wilted plant.
Less than 1.
It is called brackish water. It tastes salty but may contain very little salt.
An Opal usually contain 4 to 9 per cent water but lower and higher values have been observed.