Sirius, the brightest star, is 8.8 light-years from earth. that means
a) sirius is not part of the milky way.
b) sirius is closer to earth than the sun.
c) we see sirius as it looked 8.8 years ago.
d) it would take us 8.8 years to reach sirius.

State two physical properties of ionic compound

Which statement is a reason to support population regulation? a) it is unethical for us to control birth control rates b) humans have the freedom to produce as many children as desired c) the gap between the rich and poor has been narrowing since 1960 d) billions more people on the earth will intensify many environmental and social problems

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable