Answer:
Tangible items or pictures used by scientists to represent invisible processes are called <u><em>Scientific Models</em></u>
Explanation:
Scientific models can be both physical or non-physical and help to represent a theory or natural phenomenon. An example of a physical scientific model cab be the globe or an Orrey (model of the solar system)
Non-Physical scientific models consist of mathematical models or even economic models that can help to predict something or clearly present a theory.
A scientific model helps to present and explain an idea and apart from just students and it can be equally useful for professionals.
The correct answer to this open question is the following.
What responsibilities, if any, do Americans have to promote representative democracy and constitutional government in other nations?
The United States has no responsibility to promote democracy in other countries because that would be intromission in other nations. In today's world, that is not acceptable. Every country is autonomous and has its own right to establish the best form of government their citizens approve.
What the US can do is to be an example of a democratic government by its actions and legislation. It can show other countries the possibilities that democracy offers. However, every country has its own problems and challenges, including the US. That is why it is important to respect the sovereignty of each country.
Well, you own what is in your title, which means your lawn, and sometimes mineral but not always.
