Answer :

The main chemical element behind algae blooms that form in the Chesapeake Bay is Nitrogen. 1. Nitrogen is a key nutrient for algae growth. Excessive amounts of nitrogen, often from sources like agricultural runoff and wastewater treatment plants, can lead to an overabundance of algae in water bodies like the Chesapeake Bay. 2. This excess nitrogen fuels the rapid growth of algae, causing blooms that can deplete oxygen levels in the water when the algae die and decompose. This process, known as eutrophication, can harm aquatic ecosystems by creating "dead zones" where marine life struggles to survive. 3. Algae blooms can have far-reaching consequences on water quality, marine habitats, and fisheries in the Chesapeake Bay region. Managing nitrogen inputs into the bay is crucial in controlling and preventing harmful algae blooms and maintaining a healthy ecosystem. By understanding the role of nitrogen in algae blooms, efforts can be made to mitigate its impact and protect the delicate balance of the Chesapeake Bay ecosystem.