Answer:
Compare spectra obtained before and during an eclipse
Explanation:
- The passage of a planet between the star and the earth id called as a transit.
- The compassion between the spectral variation obtained from the light emitted by the planet can be used to find the presence of the exoplanet.
- The transiting planet has an atmosphere as some of the light passes from the sun and reaches the earth from the atmosphere of the planet.
- The brightness goes on decreasing as the planet passes out in an eclipse phase.
The answer is D. Russia -- Moscow
The answer to your question is B.
I would go with B .
Hope this helps yaa!