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Aquaponics is the combination of ________ and _________.

• plants and water
• aquaculture and water
• hydroponics and aquaculture
• hydroponics and plants

How does aquaponics help the environment?

• Less water is needed.
• Food can be grown locally and not shipped in from far away.
• Chemical fertilizers do not need to be sprayed on plants for nutrients.
• All of the above!

The nitrogen cycle has three living organisms: 

• fish, plants, and people
• plants, bacteria, and algae
• fish, bugs, and algae
• fish, plants, and bacteria

Aquaponics is important to the future of food production because it allows a grower to produce a large quantity of food in a small space using minimal resources.

• True
• False

How do fish help the plants grow?

• They eat the bugs that harm the plants. 
• They eat debris which cleans the water.
• They produce waste which acts as nutrients for the water
• They urinate in the water producing ammonia for plants.

What is a substance that provides nourishment essential for growth and the maintenance of life?

• nutrient

• BTB solution

• oxygen

• carbon dioxide

What converts nitrogen gas into a usable form for plants and animals?

• bacteria

• rain

• fungi

• car exhaust