A . Human society is the best answer :)
The appropriate answer is a. Increased rainfall across the eastern Pacific Ocean. Scientists are still not sure what causes El Nino events but it does disrupt weather patterns all across the globe. One of the effects include increased rainfall along the eastern Pacific in countries such as Peru and Chile. These regions do not normally receive heavy rainfall.
Stars are classified based on the spectral type (i.e. a means to measure the photospheric temperature and density by getting information about the ionisation state).
Under the Morgan–Keenan (MK) system using the letters O, B, A, F, G, K, and M, a sequence from the hottest (O type) to the coolest (M type) (Harvard Spectral classification based on the surface temperature of the stars). A luminosity class is added to the spectral class using Roman numerals (Yerkes Spectral classification). This is based on the width of certain absorption lines in the star's spectrum (0 or Ia+ - hypergiants, I - supergiants, II - bright giants, III - regular giants, IV - sub-giants, V - main-sequence stars, sd - sub-dwarfs, and D - white dwarfs).
The correct answer is the pancreas
