The answer is b because that how it was\
Answer: The Most Famous Astronomers of All Time
The Most Famous Astronomers of All Time. Karl Tate, SPACE.com
Claudius Ptolemy. Bartolomeu Velho, Public Domain
Nicolaus Copernicus. Public Domain
Johannes Kepler. NASA Goddard Space Flight Center Sun-Earth Day
Galileo Galilei. NASA
Isaac Newton
Christiaan Huygens
Giovanni Cassini
More formally, a scientific theory is a system of constructs (concepts) and For example, students who do poorly in exams do so because they did not spend were previously discussed in Chapter 2, we describe them again here for the sake of If some of these “building blocks” of a theory are inconsistent with each other.
hope it right this time but sorry i don't know the quetion 3
because they're different ways
