Is it ok to end a conclusion paragraph (essay) with a "thanks for reading" type of sentence?

Read the excerpt below and answer the question. “this fair country alone is settled by freeholders, the possessors of the soil they cultivate . .” in about 100 words, discuss the influence that being a “freeholder” has on a settler and, according to crevecoeur, the admirable qualities it engenders.

Then she heard his step on the stair away down on the first flight, and she turned white for just a moment. the phrase "she turned white for just a moment" is mainly used to show that della has very fair skin. is afraid of jim's reaction. is beginning to get an illness. had become extremely angry.

Introduction to making a difference: it’s our world, too