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.
The correct answer is A! Hope this helped!
Answer:water
Explanation:because water is made ho2
A tentative explanation of a phenomenon that can be tested I believe is a scientific experiment.