¿Durante 270 minutos que el alimento a estado en investigación tendrá el mismo valor nutritivo y conservará sus vitaminas ?

Maybe you should get some from your teacher and learn more so you can get your grades up and maybe study a bit more

Answer heart of american                  live in harmony                    hillsides of orchards                    blaze of color                    backdrop of pines;

Polyethylene is a strong synthetic polymer that can be used to make toys and bottles. polyethylene is a plastic material called thermoplastic. one very useful property of thermoplastic is that when it is heated it turns into liquid, which can be molded into desired shape and size. also the material do not dissolve at room temperature.

Sink to the bottom. addition of potassium nitrate past it’s dissolution capacity at a particular temperature will cause the extra to just sink to the bottom of the glass.however, if you were to raise the temperature of the solution prior to dissolving it, and then slowly decrease the temperature after the dissolution, you would create a “supersaturated” solution - a solution that has more solute dissolved into it than should be allowed. if you add any extra solute past this, the entire solution would “crystallize,” and this is how you get those cool videos on youtube.