Alexander Graham Bell's greatest accomplishments were the invention of the telephone (1876) and the refinement of the phonograph (1886). Bell revolutionized communication as we know it and paved the way for more inventors to improve communication as we know it now.
hope that helped :)
Facts are agreed-upon statements; theories are ideas.
<h3>Does a theory summarize and explain facts?</h3>
A theory not only explains known facts; it also allows scientists to make predictions of what they should observe if a theory is true. Scientific theories are testable. New evidence should be compatible with a theory. If it isn't, the theory is refined or rejected.
<h3>What is a theory statement?</h3>
A theoretical statement says something about the values of one or more variables, although it is generally thought of as expressing something about the relationship between two or more variables (e.g., “The more television a child sees, the more aggressive the child will act”).
Learn more about theory statement here:
<h3>
brainly.com/question/24075103</h3><h3 /><h3>#SPJ4</h3>
This is a very important part of the American political structure because it ensures that, where the United States Constitution grants power to the national government, laws enacted by that national government outrank – or take precedence – over laws enacted by state governments
I think this is arranged <span>Marriage.
I hope this helps.</span>
