Answer:
an iceberg
Explanation:
For decades after the disaster, there was little doubt about what sank the Titanic. When the "unsinkable" ship, the largest, most luxurious ocean liner of its time, crashed into an iceberg on its maiden voyage in 1912, it took more than 1,500 of its 2,200 passengers to the bottom.
Observing nature is great because you can learn so much about the world around you.
Obseving the earth can help you make new discoveries
The irony in To Kill a Mocking Bird is verbal, dramatic, and situational irony.
I would assume the blank would be "get" or "return."