You Are Studying with a Classmate,who Explains That Increasing the Amount

question 36

Multiple Choice

You are studying with a classmate,who explains that increasing the amount of nutrients in a lake helps submerged,rooted aquatic plants by providing them with the nitrogen and phosphorus they need to survive and reproduce.Which of the following should be your response to your study buddy?

• A)You disagree because the resulting increase in phytoplankton at the surface would inhibit sunlight from penetrating into the water,thus inhibiting photosynthesis in the submerged plants.
• B)You agree and point out that plants also benefit because the decrease in oxygen will kill aquatic fish and snails,some of which would otherwise eat the aquatic plants.
• C)You agree because all organisms need nitrogen and phosphorus,and waterways are naturally limited in those nutrients.
• D)You disagree and explain that plants cannot use the nutrients in the water because the plants do not have access to the nutrients.
• E)You agree and point out that the resulting fish kill would further enhance the nitrogen and phosphorus levels in the lake,which would further enhance the growth of submerged aquatic plants,creating a positive feedback loop.

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Definitions:

Cultural Heritage

The tradition of material possessions and non-material characteristics transmitted through generations in a group or society.

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A field of study that combines insights from psychology and economics to explore how people make economic decisions in real-world situations.

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