Stars, other than the sun, are too far away from earth to be studied by space probes. how are scientists able to study the composition of a star that is located outside of the solar system?
a.
by evaluating the air pressure in the atmosphere of the star
b.
by evaluating the kinds of sounds given off by the star
c.
by evaluating the different colors of light radiated by the star
d.
by evaluating the mass, density, and volume of the star

the old way of life was represented by superstition, an angry god, and absolute submission to authority. the thinkers of the age of reason ushered in a new way of thinking. this new way championed the accomplishments of humankind. individuals did not have to accept despair. science and reason could bring happiness and progress. kings did not rule by divine right. they had an obligation to their subjects. europeans pondered the implications for nearly a century. americans put them into practice first.