Why Choosing A Feminine Pixie Cut With Undercut Is The Perfect Way To Combine Elegance With A Modern Edge

I have flunked the exam, that is why i am attending coaching classes.

I have flunked the exam, which is why i am attending coaching classes.

Is there any change in the meaning of sentence if i replace.

Why should the first person pronoun 'i' always be capitalized?

Why Choosing A Feminine Pixie Cut With Undercut Is The Perfect Way To Combine Elegance With A Modern Edge 4

I realize that at one time a lot of nouns in english were capitalized, but i can't understand the pattern of those left.

Good explanation of why it's optional in this case, although i'm not convinced that reason is the only reasonable antecedent of why.

Why Choosing A Feminine Pixie Cut With Undercut Is The Perfect Way To Combine Elegance With A Modern Edge 6

For example, the explanation why is a common usage, and i don't.

Why is it that everybody wants to help me whenever i need someone's help?

Why Choosing A Feminine Pixie Cut With Undercut Is The Perfect Way To Combine Elegance With A Modern Edge 8

Why does everybody want to help me whenever i need someone's help?

Can you please explain to me the difference in mean