<span>Comets are made of ices, such as water, carbon dioxide, ammonia and methane, mixed with dust. These materials came from the time when the Solar System was formed.
A comet is a small object made of ice and dust that orbits the Sun and foems a coma as it approaches the Sun.
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The nucleus contains the cells genetic material in the form of DNA
The kind of ROI Luis demonstrates is : Positive ROI
<h3>Positive ROI</h3>
A positive ROI is defined as when the cost of a financial decision/step is lower than the gain of a financial decision.
Luis takes a loan to help him earn a certificate, the certificate he earns has helped him earn a good salary job which he can use to repay the loan.
Therefore in the long term Luis will have a positive return on investment on his financial decision.
Hence we can conclude that the kind of ROI Luis demonstrates is Positive ROI.
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Number 1 represents the reparation payments from Germany to France and Britain.
<h3>What is the flow of funds?</h3>
The flow of funds implies the movement of money from one person or entity to another. In the case of the international flow of funds, this occurs as money moves from one country to another.
<h3>What does number 1 represent?</h3>
Considering number 1 occurs from Germany to France and Britain, it likely represents reparation payments. This is because by the end of the First World War in 1918 Germany had to pay a lot of money to the countries affected by its war actions, which included France and Britain.
Therefore, money flowed from Germany to France and Britain as shown in the diagram.
Note: This question is incomplete because the diagram and question are not provided. Here I attach the diagram and question.
Learn more about First World War in: brainly.com/question/1027241