Nearly 97% of the water on Earth is unusable by humans because of its 1.)_. This lack of usability is due to the fact that water 2.)_.

1.
A. temperature.
B. salinity.
C. impurities.

2.
A. is a universal solvent.
B. expands upon freezing.
C. is transparent.

Nearly 97% of the water on Earth is unusable by humans because of its salinity and due to the fact that water is a universal solvent means that water has the ability to dissolve large number of compounds in it. Sea water has salts which can not be used for drinking purpose.

So we can conclude that Salinity and universal solvent are the two factors which make 97% of water unusable.

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Nearly 97% of the water on Earth is unusable by humans because of its 1.)___. This lack of usability is due to the fact that water 2.)___. 1. A. temperature. B. salinity. C. impurities. 2. A. is a universal solvent. B. expands upon freezing. C. is transparent.

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Why all the water can't be used?

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Nearly 97% of the water on Earth is unusable by humans because of its 1.)_. This lack of usability is due to the fact that water 2.)_.

1.
A. temperature.
B. salinity.
C. impurities.

2.
A. is a universal solvent.
B. expands upon freezing.
C. is transparent.