Which type of stars is more abundant in "metals" (elements heavier than hydrogen and helium) in their outermost layers?
A. Extremely old stars that formed a long time ago.
B. Young stars that formed very recently.
C. (Both (A) and (B) would have equal amounts of elements heavier than hydrogen and helium in their outer layers.)
D. (Neither (A) nor (B), as there cannot be elements heavier than hydrogen and helium in the outer layers of stars.)
Answer:B
Which type of stars is more abundant in "metals" (elements heavier than hydrogen and helium) in their outermost layers?
A. Extremely old stars that formed a long time ago. B. Young stars that formed very recently. C. (Both (A) and (B) would have equal amounts of elements heavier than hydrogen and helium in their outer layers.) D. (Neither (A) nor (B), as there cannot be elements heavier than hydrogen and helium in the outer layers of stars.)