What kind of galaxy has arms of gas and dust?

elliptical galaxy

spiral galaxy

irregular galaxy

bar galaxy

Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve

Which process of living things produces water that enters the water cycle

As an asteroid comes close to earth, it's name will change to? apex