Describe the various methods used to desalinate seawater
What will be an ideal response?
Electrolysis Method: A current is run through positive and negative electrodes in freshwater separated by semipermeable membranes from seawater. Distillation Method: Saltwater is boiled and the water vapor is passed through a cooling condenser, where it condenses as freshwater. Freeze Separation Method: Seawater is frozen and thawed multiple times, with the salts washed from the ice between each thawing. Reverse Osmosis Method: Water on the salty side of a semipermeable membrane is pushed under high pressure through the membrane to the freshwater side.
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The boundary between the steep part and the flat part of a beach is called
A) a berm. B) a beach face. C) a berm crest. D) a wave-cut platform.
Referring to Map 9.8.5, which countries would be more likely to be able to pay their loans back?
A) Brazil and India B) Mexico and Argentina C) Kazakhstan and Sudan D) Peru and Mongolia E) Papua New Guinea
Write a generalization relating air temperature and the amount of water vapor to saturate air
What will be an ideal response?
If the earth rotated twice as fast as it does, the Coriolis force would be half as much as on Earth
Indicate whether the statement is true or false