Solution:
- The technology depicted in the diagram is hydroponics or soilless plant culture.
- Tomato, Lettuce, Marijuana, Pepper, and Cucumber. b) Tomato, Lettuce, Marijuana, Pepper, and Cucumber.
- Aerating tube: A bent tube used to ensure optimum aeration of the root-growing media.
The medium is fed nutrients and water through a feeding funnel.