insert dashes where needed.\nthe explorers needed torches to light their way through the dark ice cave its…

insert dashes where needed.\nthe explorers needed torches to light their way through the dark ice cave its walls were more than twenty feet thick and blocked out the light of the sun.
Answer
Brief Explanations:
To insert dashes, we use an em dash (—) to connect the two independent clauses for a smooth flow and to show the relationship between the cave description and the need for torches. The correct sentence with the dash is: "The explorers needed torches to light their way through the dark ice cave—its walls were more than twenty feet thick and blocked out the light of the sun."
Answer:
The explorers needed torches to light their way through the dark ice cave—its walls were more than twenty feet thick and blocked out the light of the sun.