The answer is senile, because it refers to weakness as a result of old age.
Sneak peek means to preview something, like "I'll give you a sneak peek of the book!" Meaning, the person will give you a preview of the book (passages).
Answer:
fiction novel = novel, and nonfiction novel = nonfiction book.
Explanation:
Quantum mechanics<span> (QM -- also known as </span>quantum physics<span>, or </span>quantum<span> theory) is a branch of </span>physics<span> which deals with physical phenomena at nanoscopic scales where the action is on the order of the Planck constant. It departs from classical </span>mechanics<span> primarily at the </span>quantum<span>realm of atomic and subatomic length scales.</span>
