Answer:
Short answer: "That" is used to introduce essential clauses or information, while the pronoun "which" is used to add non-essential or non-defining clauses. Also, these non-essential clauses are set off with commas.
Explanation:
First of all, the words "that" and "which" are both relative pronouns; this means, both introduce clauses that describe a noun previously mentioned. However, the pronoun "that" should be used only to introduce essential or defining clauses (information that cannot be omitted); for example "She is the woman that I love". On the other hand, the word "which" introduces information that is not essential or non-defining clauses; for example "The house, which is located near the sea, is stunning". Moreover, clauses introduced by which are set off in commas to show they are not essential.
The creator of this concept was a famous linguist that goes by the name of Noam Chomsky. Much of transformational grammar comes from the minimalist program, also created by Chomsky. <span />
Peyton Farquhar is a wealthy Alabama plantation owner is about to be hanged from a railroad bridge in Alabama because he attempted to set fire to the Owl Creek Bridge and act as a vigilant by acting on his accord. By this, he got caught because he is being fooled by a union soldier and processed as it is customary: death by hanging.