It is B, because that is how they produce their scientific name
Oxygen,carbon,nitrogen and hydrogen hope this helps
Answer:
pic 1 red giant, a star whose outer shell has expanded and cooled
pic 2: supernova, a shock wave produced by extremely high temperatures
pic 3: black hole, a high mass star that has collapsed from gravity
pic 4: white dwarf, a low mass star that has shed its outer layers
Explanation:
Answer:
I believe the answer is B. X-spongy;Y-marrow
