How are continental glaciers diffrent from valley?

Read the excerpt below and answer the question. she dwelt among the untrodden ways beside the springs of dove, a maid whom there were none to praise and very few to love: a violet by a mossy stone half hidden from the eye! --fair as a star, when only one is shining in the sky. she lived unknown, and few could know when lucy ceased to be; but she is in her grave, and, oh, the difference to me! (wordsworth, “she dwelt among the untrodden ways”) which option explains a meaning implied by the use of the adjective untrodden in the excerpt? the maid was lost in the woods. the maid lived in a rural setting. the maid was a nature spirit. the maid suffered a life without joy.

An effective thesis statement will reflect . . 1) possible weaknesses in your own argument. 2) possible weaknesses in your opponent's argument. 3) the type of document--or genre--you plan to write. 4) your attitudes about aquatic mammals

What is the meaning of the word checking as it is used in this sentence from the second paragraph of the passage?