Correct option is D
Volcanoes emit a variety of gases during eruptions, with Sulphur Dioxide (SO₂) being one of the most common and significant gases. Volcanic gases are primarily composed of water vapor, carbon dioxide, and sulfur compounds, including sulfur dioxide.
Water Vapor (H₂O): The most abundant gas released during volcanic eruptions is water vapor. It originates from the water content in magma and contributes to the explosive force of eruptions.
Carbon Dioxide (CO₂): Carbon dioxide is the second most abundant gas in volcanic emissions. It is released from the magma as pressure decreases and magma rises toward the surface.
