Various methods of aquaculture can be used to grow species of marine fish. consider the figure below, which shows one way that an aquaculture system can be set up. explain whether this represents an open or closed system and one benefit of using this type of system. this represents a closed system, and one benefit is that all waste is recycled in the system. this represents a closed system, and one benefit is that the risk of passing disease between other species is lower than in an open system. this represents an open system, and one benefit is that it does not release organic waste to cause pollution. this represents an open system, and one benefit is that waste does not accumulate in the system.

The correct statement is that this represents an open system, and one benefit is that waste does not accumulate in the system.

Explanation:

It is the case of open system, and the system where mass possesses the tendency to move in and out of the system is considered as the open system. The mass getting within the system refers to the water, which is supplemented into the tank, and the parting mass is the water, which is produced.  

The main benefit of utilizing the open system is that the water quality can be maintained so that the fishes remain healthy and do not have to thrive in waste, which is the case in the closed system.  

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answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.