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 the two best answers.
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.
he heard a report on the radio warning about a volcanic eruption.

Explanation:

To determine the correct answers, we analyze each option:

• "He smelled sulfur and then realized it was not coming from his boat": Sulfur smell is a common sign of volcanic activity, and realizing it's not from the boat points to an external (volcanic) source.
• "He knew his crew had finished putting their fishing lines in the ocean": This is about fishing, not related to volcanic eruption evidence.
• "He saw pieces of molten rock shooting out of the water": Molten rock (lava) being ejected from water is a direct visual evidence of a volcanic eruption (especially undersea).
• "He heard a report on the radio warning about a volcanic eruption": A radio report is indirect information, not an observation the captain made himself.

So the two best answers are the ones related to direct observations of volcanic - related phenomena (smelling sulfur from a non - boat source and seeing molten rock).

Answer:

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