YES
salt
Sea water will boil at higher temp
they're both H2O.
All rivers carry rainwater to the sea, so any river in Europe!
That depends entirely where they are from. Most rainwater is around 6, well water can be 5.5 - 7.5 and seawater is usually about 8.
its nothing
Sea water has higher boiling point,as it contains sodium chloride
Only water is evaporated, not salt.
Erosion. Water does not stop until it has reached the lowest point. This usually means into the sea.
Most rivers, streams and creeks carry rainwater to the sea.There are exceptions: one of Australia's major waterways, the Cooper Creek system, carries water to the salt lake (not an inland sea) known as Lake Eyre in far northern South Australia. This water does not find its way to the sea.
it contains dissolved water 'salt'