<span>The issue of sleep deprivation is a scientifically valid concern regarding adolescents' media use. There are a number of studies that have found an association between the use of electronic media including television, computers and mobile phone, and shorter sleep duration in adolescents.</span>
Answer:
smart I think because he knew alot of important stuff
The last step to take when shutting off the entire welding unit after all welding is complete is releasing the adjusting screws on the pressure regulators.
Welding is a process of joining materials, usually metals or thermoplastics, It involves using high heat to melt the parts together. It also allows them to cool, causing fusion.
It involves various steps before and after welding.
To learn more about Welding here
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If a country is not able to produce some goods, it has to buy them somewhere else and bring them into the country - this is called importing, so the correct answer is b.
Selling goods outside of the country is called exporting and giving them away would be called donating.
<span>They dissapeared 100 or more people.</span>