<span>The correct answer is A. The river is constantly changing. The author describes the Mississippi as fickle because it is not constant - you can never know when it is going to change, and whether that change will be for the better or for the worse. The word fickle means changeable, volatile, irregular. </span>
Answer:
the fixed amount of energy that a system described by quantum mechanics, such as a molecule, atom, electron, or nucleus, can have.
Explanation:
Energy levels (also called electron shells) are fixed distances from the nucleus of an atom where electrons may be found. Electrons are tiny, negatively charged particles in an atom that move around the positive nucleus at the center. Energy levels are a little like the steps of a staircase.
It describes how the man hopes to find the young beauty, and embrace. her youth and her love.