Question

which three gases are released into the atmosphere when volcanoes erupt?
radon, helium, nitrogen
nitrogen, water vapor, carbon dioxide
carbon dioxide, carbon monoxide, radon

Explanation:

When volcanoes erupt, nitrogen, water vapor, and carbon dioxide are common gases released. Nitrogen is present in the Earth's mantle and is released during eruptions. Water - vapor is a significant volcanic gas as magma contains water. Carbon dioxide is also released as it is dissolved in magma. Radon and helium are not the main gases released during volcanic eruptions.

Answer:

C. nitrogen, water vapor, carbon dioxide