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berniceallonce22
25.08.2019 •
Social Studies
Which best describes proper disposal technique?
a.
a bin should be labeled “chemical wastes and hazardous waste.”
b.
a bin should be labeled “chemical wastes and broken glass.”
c.
students should know proper disposal of the chemicals they use.
d.
students can dispose of all chemicals in the sin
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Ответ:
The correct answer is A.
Proper disposal technique is very important because there are different types of waste. Chemical waste is very hazardous as it may cause reaction to the skin if touched or not stored properly. Chemical compatibility with the disposal bin must also be considered.
A waste disposal bin should always be properly labeled. Only chemical waste should be disposed there and it should never be mixed with any type of glass. Labeling the bin is thus very important and should always be read carefully. If if the students know all about the disposal techniques they should always read the bin's label and never dispose all of the chemicals into a regular, non-labeled bin.
Ответ:
Mensionare varios, y de ahi tu escoges, espero te sirva de gran ayuda:
°Son históricas.
°Son en representación a alguien o algo o algún hecho muy importante.
°Tiene riqueza artística.
°Algunos establecen un mensaje.
°Son recuerdos memorables.
°Tienen gran valor e interés.
°Pueden estar ubicados en espacios públicos o privados, como museos.