Question

1. what is a consequence of using synthetic nitrogen in agriculture? a. increased biodiversity b. decreased water usage c. dead zones in aquatic systems d. improved soil fertility 9. what is the relationship between nitrates and water usage in plants? a. nitrates decrease water usage b. nitrates have no impact on water usage c. nitrates require four times as much water d. nitrates increase water conservation 10. what is emphasized as a better alternative to synthetic nitrogen? a. chemical fertilizers b. organic nitrogen sources c. nitrate - rich solutions d. mineral amendments

Explanation:

1. Synthetic nitrogen runoff can cause eutrophication in water bodies, leading to dead - zones.
2. Nitrates mainly affect plant nutrient uptake and growth, not water usage directly.
3. Organic nitrogen sources are often seen as a more sustainable alternative to synthetic nitrogen.

Answer:

1. c. Dead zones in aquatic systems
2. b. Nitrates have no impact on water usage
3. b. Organic nitrogen sources