Nitrogen Cylce / Aquaponics Test

Front

What is the formula for atmospheric nitrogen?

Back

N₂

Front

What is the process of combining nitrogen gas with other elements to make nitrogen into usable compounds?

Back

Nitrogen fixation

Front

The amount of hydrogen ions in water is known as?

Back

pH

Front

What is the ideal pH for goldfish?

Back

7.0 - 8.4

Front

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 or False?

Back

True

Front

What is the role of nitrogen-fixing bacteria in the nitrogen cycle?

Back

They convert atmospheric nitrogen (N₂) into ammonia (NH₃), making it available for plants.

Front

What is denitrification?

Back

The process by which bacteria convert nitrates (NO₃) back into nitrogen gas (N₂), returning it to the atmosphere.

Front

What is ammonia in the context of the nitrogen cycle?

Back

A compound (NH₃) that is produced by nitrogen fixation and is used by plants.

Front

What is the significance of pH in aquaponics systems?

Back

pH affects nutrient availability and fish health; it must be maintained within a specific range.

Front

What are nitrates and their role in the nitrogen cycle?

Back

Nitrates (NO₃) are compounds that plants absorb as nutrients, produced from ammonia through nitrification.