Question

the erupting undersea volcano seen by the sailors on the isleifur ii according to the text, what evidence of a volcanic eruption did the captain observe? select all that apply. he heard a report on the radio warning about a volcanic eruption. he smelled sulfur and then realized it was not coming from his boat. he knew his crew had finished putting their fishing lines in the ocean. he saw pieces of molten rock shooting out of the water.

Explanation:

Volcanic eruptions release sulfur compounds, so smelling sulfur (not from the boat) is direct observational evidence. Undersea volcanoes can eject molten rock above the water, so seeing molten rock shooting out of the water is also direct observational evidence. A radio report is secondhand information, not direct observation, and finished fishing lines are unrelated to volcanic activity.

Answer:

• He smelled sulfur and then realized it was not coming from his boat.
• He saw pieces of molten rock shooting out of the water.