Question

much of the nitrogen that humans add to the soil ends up in our streams, rivers, and the ocean. an increase of nitrogen in the waters can change the ph of the water, it can cause lower levels of oxygen in the water, and it can affect which organisms live there.

1. one consequence of increased aquatic nitrogen is toxic algal blooms. is an algal bloom?
2. how do algal blooms affect other life in the surrounding area?

Explanation:

1. Algal blooms are a common consequence of increased aquatic nitrogen. Nitrogen - rich water provides abundant nutrients for algae to grow rapidly, leading to blooms.
2. Algal blooms can deplete oxygen levels in the water as the algae die and decompose. This can suffocate fish and other aquatic organisms. Some algae also produce toxins that are harmful to other life - forms, including humans if they consume contaminated seafood.

Answer:

1. Yes
2. They can deplete oxygen levels and produce toxins, harming fish, other aquatic organisms and potentially humans who consume contaminated seafood.