Options: 1. marshes and swamps; 2. Something made from fermented ricce; 3. Something that grows in Mexico; 4. plankton and nonliving organic; 5. roots and shoots; 6. evaporative cooling; 7. A transportation fuel; 8. that material's properties;

Fact 1: Acactus stem is used for storing water. Fact 2: Astriking cactus plant from Mexico. Given the two facts above, what can be used for storing water?
Answer:
3.