C isn't correct just a heads up.
agriculture is the answer
Sikhism would be your answer
Answer:
These laws are meant to reduce ozone layer depletion.
Explanation:
The answer is Accretion of material by the supermassive black holes located in the galactic cores and this is the cause of intense luminosity of the galaxies that are active like seyferts as well as quasars.Hope this is the answer and would help.