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problems of conservation: water - part 24 of 28. focusing on some of southern california's problems, the film shows innovative ways to increase water supplies - percolation ponds, desalination of salt water, artificial weather control. this film also poin - green powder stock videos & royalty-free footage
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Problems of Conservation: Water - part 24 of 28. Focusing on some of Southern California's problems, the film shows innovative ways to increase water supplies - percolation ponds, desalination of salt water, artificial weather control. This film also poin
Environmental Conservation, Water, Problems
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