solve these pls & thank u sooo much

What events are occurring in the atoms of stars that result in the absorption lines that are seen in their spectra? Choose one: The nuclei of the atoms are radiating at gamma ray wavelengths. The atoms are absor bing high energy photons and most will be ionized. Electrons are transiting from higher to lower energy levels. Electrons are transiting from lower to higher energy levels. 1st attempt We have worked a lot with the Balmer series of hydrogen. For this question. we combine the electron transitions from energy level 2 to higher energy levels with the spectrum of a spectral type A star. You will notice that the hydrogen absorption lines dominate the spectrum. Identify the wavelengths associated with each of the first five electron transitions. This activity covered the reasons why the strengths of the hydrogen Balmer lines vary with the surface temperatures of stars. Here. "strength" means how much light any given absorption line takes out of the overall blackbody radiation curve. Sort the following sets of spectral types of stars by those that show the weakest, medium strength, and strongest hydrogen lines in their spectra. Spectral types of stars (4 items) (Dragand drop into the appropriate area below)' H line strengths This activity in your workbookintroduced how astronomers classity stars - how they determine their spectral types, based on the stars' spectra. By far, we get the most information about stars-temperatures, compositions, atmosphere densities, and more-from our analyses of their spectra. For this question, weve simplified graphs of relative brightness versus warelength for the spectra to emphasize the blackbody curves and strength of a few lines of ionized calcium (Ca 11), magnesium (Mg), sodium (Na), and the Balmer series of hydrogen (H). Rank the spectra of stars from hottest to coolest. You should pay attention to the strength of the hydrogen lines as well as the peak wavelengths of the blackbody curves. (There may be one or more where the peak wrielength is not within the wavelength region observed) Spectra of stars (4 images) Rarking (Oras and drop into the appropriate area) When we discuss continuous radiation, we are talking about electromagnetic radiation (light) (3) Choose one: A. having characteristics defined only by the packets of light energy called photons. B. that has been created by electrons transiting from exact higher to lower ener gy levels. C. that varies smoothly in a predictable pattern over a wide range of wavelengths. D. that is emitted over a very long period of time, such as light coming from galaxies. The Sun is a spectral type Gstar. Sort the following spectral types into those having surface temperatures hotter than the Sun and those having surface temperatures cooler than the Sun. Spectral types (4 items) (Drag and drop into the appropriate area below) Temps relative to Sun