Water polarity. Which is the correct answer?

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Over the last 90 years, scientists have added to the body of evidence supporting the big bang theory. what is the latest piece of evidence discovered in 2014?

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out