California States experiencing severe drought crisis. In recent years, the rivers dry up dramatically. Let's compare the sample picture Bidwell Marina dock on the year.. In 2011 and 2014
Bridge Enterprise 2011 and 2014 differ much. Then it is obvious that water is a serious drought in the
official California has to find a solution to the water shortage. Using these black ball
doubt that the black ball tosses. Large similar to apple's special what?
Actually. It was not anything special It's just a plain black plastic ball. But help prevent water shortages have
96 million children in California released the ball into the dam. Made from quality materials were very durable. Coating and UV protection. To help prevent the amount of water to evaporate quickly
or black ball called shade ball is down to cover the surface of the dam to reduce the evaporation of water from the sun. It also reduces the chemical reactions and toxins that may occur in the water, too, when the ball float over the surface of all, it helps prevent dust, chemicals or organisms that could make the water quality worse
and not help them. algae growth in water Which is the source of water pollution
cost of a black ball These are 36 cents, or about 11.5 baht total cost of this project is just one in 10 of the budget, the dam of the only new
but it can. preserving water resources effectively. How this came to be invented this really cool ball two thousand children were left in the reservoir
Los Angeles, California. The Mayor Eric Garcetti headed the ball into the reservoir
Eric Garcetti statement that Balfour California is experiencing a severe drought. How to help preserve the water resources necessary to recruit them to be.
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