nuance means bad, loud, out of control, etc. hope this helps
In this paragraph, a white puddle is a simile for snow. If the sentence where white puddle is mentioned is this one: Patches of old snow, scattered here and there, looked like white puddles.
C. A manuscript. If only one answer is allowed. A primary source is a document that is created at the time in which the events it describes is occurring. A manuscript is something that is written by hand and therefore the author would be describing events or ideas that occurring at the time of creating the manuscript. A textbook references other ideas and is a secondary source. A fiction book describes unreal events. A journal article is published in a collection and often refers to other previous events.
Thanks to the agricultural expert's insight, we decided to let the field lay fallow for a year to improve the soil quality - it was a success!
Fallow usually means that something is not fertile or being used to grow anything. Often it is seen used when talking about fields used to grow crops. Allowing a field to lay fallow for a certain amount of time can help it gain back some of the key nutrients in the soil that excessive farming may have depleted. Another word for insight is knowledge.