Question

Which of the following statements is true?
Saltwater can be treated and used for drinking water.
One atmosphere is equal to 100 pounds per square inch (psi).
The temperature of ocean surface water depends on salinity.
Earth has one high tide and one low tide every tidal cycle.

Answer 1

earth has one high tide n 1 low tide in tidecycle

Answer 2

but salt water can also be treated and used as drinking water!!

Answer 3

Saltwater CAN be treated easily to be used as drinking water. Boil the salt water and simply have something above the boiling water like a plastic bag to catch/consense the steam. This water is potable.

Answer 4

most places on the earth have 2 high tides and 2 low tides in a tidal cycle(which is 24hrs 52 min long).check this for more info-geography.about.com/od/physicalgeography/a/tides.htm