Earth's mantle has kept contributing to the Earth's atmosphere through a process called degassing. During this process, gases are emitted from the magma in the mantle and are transferred into the atmosphere through tectonic procedure such as ocean ridge spreading and volcanism.
Answer:
Energy of each photon is given by 
Explanation:
We have given wavelength of light 
Speed of light 
Plank's constant 
We know that energy of photon is given by 
So energy is given by
The second one is A, amount of time
The answer is Columbus, Kentucky