Respuesta :
The correct answer is letter c. hydrogen. Hydrogen is not commonly found within the Earth's atmosphere, but it is found on parts of the water. Hydrogen's pure form is rarely to be found on Earth's atmosphere. Oxygen and Nitrogen are two gases that makes up the Earth's atmosphere.
Answer:
The answer would be C. hydrogen
Explanation:
There is basically no hydrogen in the atmosphere as it barely makes up 0.0001 % of the atmosphere
Hope this helps ;) and if it does i would appreciate for this to be the brainliest answer =).