GEOLOGY

Detailed explanation-1: -Cultural eutrophication is the human-caused acceleration of aging, usually resulting from increased nutrient input. This results in algal blooms, which in marine environments may cause red tides and dead zones.

Detailed explanation-2: -The known consequences of cultural eutrophication include blooms of blue-green algae (i.e., cyanobacteria, Figure 2), tainted drinking water supplies, degradation of recreational opportunities, and hypoxia.

Detailed explanation-3: -An overabundance of nutrients-primarily nitrogen and phosphorus-in water starts a process called eutrophication. Algae feed on the nutrients, growing, spreading, and turning the water green. Algae blooms can smell bad, block sunlight, and even release toxins in some cases.

Detailed explanation-4: -Eutrophication is the richness of nutrients, especially nitrates and phosphates in a water body. On the other hand, the algal bloom is the rapid growth and accumulation of microscopic algae and cyanobacteria in a water body. So, this is the key difference between eutrophication and algal bloom.

Detailed explanation-5: -Phosphates and nitrates are the two main nutrients that cause cultural eutrophication as they enrich the water, allowing for aquatic plants such as algae to grow rapidly. Algae is prone to blooming into large quantities removing oxygen from the water generating anoxic conditions.