Here are the answers to your questions:
Question 1: "I bought a necklace" in Spanish is:
- Compré (this is the correct option).
Question 2: "They bought sunglasses" in Spanish is:
- Compraron (this is the correct option).
Question 3: "I looked for" in Spanish is:
- busqué (this is the correct option).
Question 4: The depth of the main waterfall at Parque Nacional Iguazú is:
- 260 feet (this is the correct option).
If you have any more questions or need further assistance, feel free to ask!