Oligotrophic area Usually, an olidgotropic organism is a one that can survive in an environment which has low levels of nutrients. So, an oligotropic area would be an environment which has less nutrient to support life. These environments are usually of air, ice, soil or water with low levels of nutrients. Eutropicarea In contrast to oligotropic, eutropic areas are nutrient rich areas. Here, due to excess nutrients/organic matter, a large number of algae and other plants would grow excessively, depleting the oxygen content of the water body. Due to depletion of oxygen, the other aquatic organisms might be affected. Upwelling area This occurs in oceanic ecosystems. Usually, the top or the upper surface of the ocean will be warmer and nutrient-depleted. Due to the wind, the nutrient-rich water will be moved to the upper surface, replacing the water present earlier (nutrient-depleted). This area is nothing but a nutrient-rich area, that was once nutrient-depleted. So, the difference between the three is in terms of the nutrient availability. Oligotropic is a one which has low amounts of nutrients. Eutropic is a one which has high amounts of nutrients and Upwelling area is a one which is nutrient-rich but was once nutrient-depleted. The second question cannot be answered because, stratification is a very common term used to refer to layers. Here, I do not know which stratification you are talking about. Solution Oligotrophic area Usually, an olidgotropic organism is a one that can survive in an environment which has low levels of nutrients. So, an oligotropic area would be an environment which has less nutrient to support life. These environments are usually of air, ice, soil or water with low levels of nutrients. Eutropicarea In contrast to oligotropic, eutropic areas are nutrient rich areas. Here, due to excess nutrients/organic matter, a large number of algae and other plants would grow excessively, depleting the oxygen content of the water body. Due to depletion of oxygen, the other aquatic organisms might be affected. Upwelling area This occurs in oceanic ecosystems. Usually, the top or the upper surface of the ocean will be warmer and nutrient-depleted. Due to the wind, the nutrient-rich water will be moved to the upper surface, replacing the water present earlier (nutrient-depleted). This area is nothing but a nutrient-rich area, that was once nutrient-depleted. So, the difference between the three is in terms of the nutrient availability. Oligotropic is a one which has low amounts of nutrients. Eutropic is a one which has high amounts of nutrients and Upwelling area is a one which is nutrient-rich but was once nutrient-depleted. The second question cannot be answered because, stratification is a very common term used to refer to layers. Here, I do not know which stratification you are talking about..

1. Oligotrophic area
Usually, an olidgotropic organism is a one that can survive in an environment which has low
levels of nutrients.
So, an oligotropic area would be an environment which has less nutrient to support life. These
environments are usually of air, ice, soil or water with low levels of nutrients.
Eutropicarea
In contrast to oligotropic, eutropic areas are nutrient rich areas. Here, due to excess
nutrients/organic matter, a large number of algae and other plants would grow excessively,
depleting the oxygen content of the water body. Due to depletion of oxygen, the other aquatic
organisms might be affected.
Upwelling area
This occurs in oceanic ecosystems. Usually, the top or the upper surface of the ocean will be
warmer and nutrient-depleted. Due to the wind, the nutrient-rich water will be moved to the
upper surface, replacing the water present earlier (nutrient-depleted). This area is nothing but a
nutrient-rich area, that was once nutrient-depleted.
So, the difference between the three is in terms of the nutrient availability. Oligotropic is a one
which has low amounts of nutrients. Eutropic is a one which has high amounts of nutrients and
Upwelling area is a one which is nutrient-rich but was once nutrient-depleted.
The second question cannot be answered because, stratification is a very common term used to
refer to layers. Here, I do not know which stratification you are talking about.
Solution
Oligotrophic area
Usually, an olidgotropic organism is a one that can survive in an environment which has low
levels of nutrients.
So, an oligotropic area would be an environment which has less nutrient to support life. These
environments are usually of air, ice, soil or water with low levels of nutrients.
Eutropicarea
In contrast to oligotropic, eutropic areas are nutrient rich areas. Here, due to excess
nutrients/organic matter, a large number of algae and other plants would grow excessively,
depleting the oxygen content of the water body. Due to depletion of oxygen, the other aquatic
organisms might be affected.
Upwelling area
This occurs in oceanic ecosystems. Usually, the top or the upper surface of the ocean will be

2. warmer and nutrient-depleted. Due to the wind, the nutrient-rich water will be moved to the
upper surface, replacing the water present earlier (nutrient-depleted). This area is nothing but a
nutrient-rich area, that was once nutrient-depleted.
So, the difference between the three is in terms of the nutrient availability. Oligotropic is a one
which has low amounts of nutrients. Eutropic is a one which has high amounts of nutrients and
Upwelling area is a one which is nutrient-rich but was once nutrient-depleted.
The second question cannot be answered because, stratification is a very common term used to
refer to layers. Here, I do not know which stratification you are talking about.