Ok so I already studied this and I realized it was water or also Oxygen
No,
To emit light an electron has to jump down to a lower energy level but in an electron is unable to go any lower in ground state.
A or possibly C because the other options have nothing to do with the size of the vibration. If i was you I would answer with A
The equal and opposite force is the force of the stone's gravity pulling up on thy Earth.
<u>Explanation</u>:

- When someone tosses a stone off a cliff, the force of gravity of Earth pulls down and the force of the stone's gravity pulls up on the Earth due to the equal and opposite reaction exerted between the Earth and the stone.
- In Newton's third law, two important features are present. One is the force exerted on two bodies will have the same magnitude but opposite direction. The other feature is force is acting on two different objects.
- This exerted force is equal in magnitude but opposite in direction whereas the gravity exerts a downward force on a stone and upward force on an Earth which is opposite in direction.
Answer:
creamy with milk and chocolate