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The muscles around a male's scrotum involuntarily tighten if the man's body temperature drops, and they loosen, allowing the testes to hang, if the body temperature rises. This is the body's way of keeping the sperm at an ideal temperature. [citation needed] This means that sperm production can be disrupted with increased temperature. [1]
Cation exchange is widely used to remove ions such as Na + and Ca 2+ from aqueous solutions, producing demineralized water. The acid is used to rinse the cations from the resins. [25] Na + is replaced with H + and Ca 2+ with 2 H +. Ion exchangers and demineralized water are used in all chemical industries, drinking water production, and many ...
The World Health Organization considers access to safe drinking-water a basic human right. About 1 to 2 billion people lack safe drinking water. [4] Water can carry vectors of disease. More people die from unsafe water than from war, then-U.N. secretary-general Ban Ki-moon said in 2010. [5] Developing countries are most affected by unsafe ...
The YouTube Kids app features parental control settings that allow parents to limit screen time, and restrict users from accessing the search tool. Parents can use a passcode or their Google account to protect these settings, and configure profiles for multiple users to tailor their experiences.
The highest reliably recorded temperature in the world, [6] [7] 134 °F (56.7 °C), was recorded in Death Valley on July 10, 1913. Temperatures of 130 °F (54 °C) or higher have been recorded as recently as 2005. The 24-hour average July temperature in Death Valley is 101.8 °F (38.8 °C) (1981–2010 NCDC Normals).
The traditional advice of boiling water for ten minutes is mainly for additional safety, since microbes start getting eliminated at temperatures greater than 60 °C (140 °F) and bringing it to its boiling point is also a useful indication that can be seen without the help of a thermometer, and by this time, the water is disinfected.
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YouTube Kids is an American children's video app developed by YouTube, a subsidiary of Google. The app was developed in response to parental and government scrutiny on the content available to children.