Since this type of scientific method will utilize experimentation, the two varibles that would be part of the procedure is the different detergents, thus can specifically be the content, amount and acting agent as the covariables of the independent variable, detergents. And the other is the cotton fabric as the dependent variable.
The two varibles that aren't involve is the color of the cotton fabric since the experiment has not specified any but clearly specifies cotton fabric and the other will be other types of fabric.
Artist Edvard Munch, A Norwegian artist painted one of the worlds most famous images, it is known as “The Scream” several versions of the painting were previously produced, In 2004, one version of the painting was stolen, Luckily the thieves were caught in the end and police found the painting. (i’m not sure if this is what you were looking for.. but i hope it helped!)
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The two purposes of documents is to facilitate the transfer information from its author to it's reader
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I don't understand your statemate kindly rephrase it.
