Spell all words correctly. Which non-destructive technique is used for analyzing carpet fibers at a crime scene?

is a non-destructive technique used for analyzing carpet fibers at a crime scene and preserving evidence in the original form.
( forensic science question)

How air particles exert a pressure on the inside of the balloon

Ethanol (c2h5oh) is produced from the fermentation of sucrose in the presence of enzymes. c12h22o11(aq) + h2o(g) 4 c2h5oh(l) + 4 co2(g) determine the theoretical yield and the percent yields of ethanol if 680. g sucrose undergoes fermentation and 326.5 g ethanol is obtained. theoretical _ g _ percent %

When a device is used in a circuit in which the voltage is 81 v the current flowing through the device is 3 a what is the resistance of the device