Question

general questions: 1. what gas must be present in order for organisms to \breathe\? 2. bacteria break down ammonia into what toxic chemical? 3. what part of the water cycle will affect an aquarium the most? 4. which cycle is the most crucial in ensuring the survival of the animals in your tank? 5. when a saltwater tank has lost a lot of water, what should you add? 6. what part of the water cycle contributes to the salinity of the ocean? 7. what are forms of precipitation? 8. how does water move from the ocean into a cloud? 9. what organism is needed in order for nitrogen to cycle in a fish tank? 10. what elements are involved in the cycling of energy and matter on earth? 11. how does ammonia enter the water? 12. what human activity is responsible for causing an imbalance in the nitrogen cycle? 13. how can you properly cycle a new aquarium (nitrogen)?

Explanation:

1. Organisms require oxygen for respiration.
2. Bacteria break down ammonia into nitrite, which is toxic.
3. Evaporation and condensation in the water - cycle can affect an aquarium as they can change water levels and quality.
4. The nitrogen cycle is crucial for the survival of animals in a tank as it deals with the conversion of ammonia (toxic to fish) into less harmful substances.
5. When a saltwater tank has lost a lot of water, you should add saltwater to maintain the correct salinity.
6. Evaporation in the water - cycle contributes to the salinity of the ocean as it leaves behind salts.
7. Forms of precipitation include rain, snow, sleet, and hail.
8. Water moves from the ocean into a cloud through evaporation, where water turns from a liquid to a gas and rises into the atmosphere.
9. Bacteria are needed for the nitrogen cycle in a fish tank to convert ammonia to nitrite and then to nitrate.
10. Elements involved in the cycling of energy and matter on Earth include carbon, hydrogen, oxygen, nitrogen, and phosphorus.
11. Ammonia can enter the water through fish waste, decaying organic matter, and uneaten food.
12. The use of synthetic fertilizers in agriculture is a human activity that causes an imbalance in the nitrogen cycle by adding excessive nitrogen to the environment.
13. To properly cycle a new aquarium (nitrogen - cycle), you need to establish beneficial bacteria, which can be done by adding a source of ammonia (such as fish food) and waiting for the bacteria to convert the ammonia to nitrite and then nitrate.

Answer:

1. Oxygen
2. Nitrite
3. Evaporation and condensation
4. Nitrogen cycle
5. Saltwater
6. Evaporation
7. Rain, snow, sleet, hail
8. Evaporation
9. Bacteria
10. Carbon, hydrogen, oxygen, nitrogen, phosphorus
11. Fish waste, decaying organic matter, uneaten food
12. Use of synthetic fertilizers in agriculture
13. Establish beneficial bacteria by adding a source of ammonia and waiting for conversion to nitrite and nitrate