to emphasize how free the camper is to do as he pleases
The first one I am pretty sure
teeth chattering, It is a noun followed by a practical thing. I am doing something. Here is the definition.
An absolute phrase is a phrase that modifies a noun in a sentence, but it is not connected to the sentence by a conjunction. ... While an absolute phrase often does contain a participial, it does not have to. Examples of Absolute Phrase: Marshall held onto the ball, his fingers squeezing it tightly.
The answer is C) Dredging to reclaim beaches can stop erosion, but it can also create other problems, because the article mentions that dredging can help, but it also creates it's own problems, such as causing harm to the plants and animals native to the collection site, and it is a very costly process.