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 offered a equal , peaceful and happy life . This is the first reason of why people wanted to join Christianity.
The answer is D, a connotation.
B is the correct answer.
In this case, there are no personal experiences stated. There are also no interviews with marine biologists about the future of coral reefs. So, the answer is, indeed, B.
I hope this helps!
