Can someone pls give me the answer?

The salinity of freshwater is 0.5 ppt, the salinity of salt water is 35 ppt.

The freezing point point of fresh water is 32 degrees Fahrenheit, the freezing point of salt water is 28.4 degrees Fahrenheit.

The distribution of fresh water on earth is 3%, the distribution of salt water is 97%.

Fresh water is found in glaciers, underground, lakes, rivers, and swamps, salt water is found in oceans.

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

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