what to write in the evidence box
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What we can include in the evidence box is that system 1 is more efficient because the water has to move horizontally, while in system 2 it has to start moving vertically.
A water heater system is a device used to heat water in a home. A water heater uses fire to heat water as it passes through a series of tubes.
System 1 is more effective from the beginning because the water is contained in a container attached to the appliance in which its initial temperature is 39°C compared to the heater that takes groundwater at a temperature of 30°C.
On the other hand, system 1 is more efficient because the movement of water is easier if it is carried out horizontally; As we can see in the image, in system 2, the groundwater has to go against gravity to enter the heater system, so it is less efficient.
Learn more about heater water in: https://brainly.com/question/4751630