What does an HR diagram describe? A.
apparent magnitude versus spectral type
B.
absolute magnitude versus color
C.
apparent magnitude versus temperature
D.
star size versus temperature
E.
absolute magnitude versus luminosity

Earths energy sources include both renewable and nonrenewable resources. name at least three sources of energy that could be used in your house. then describe the ideal energy source for generating most of your homes electricity, and explain why you chose that source. can someone give me some ideas, i’m kinda confused.