Hydroponics

Question 1

What are hydroponics?

Answer 1

Method for growing plants without soil

Question 2

Why would hydroponics be useful for future space settlements?

Answer 2

Less space that normal methods
Plants = healthier & larger

Question 3

Subirrigation

Answer 3

Plants grown in trays filled with gravel, cinders or other coarse materials, periodically flooded with nutrient solution.

Solution allowed to drain off after each flooding, may be reused as long as sufficient materials remain

Question 4

Where have hydroponic techniques been successfully used?

Answer 4

WWII, US Army units successfully produced vegetables hydroponically at various bases overseas