The answer to this question is c
Answer:
Photosphere
Explanation:
The inner layers are the Core, Radiative Zone and Convection Zone. The outer layers are the Photosphere, the Chromosphere, the Transition Region and the Corona. IRIS will focus its investigation on the Chromosphere and Transition Region.
CCUUACUCUUAAG is the mRNA sequence
The earth is about 6,000 years old.