What is the eon, era and period of the first mammals?​

What would lead a historian to consider two events to have a relationship of correlation rather than causation

In which sentence is the italicized word used correctly? a) the sloth is a benefactor that primarily feeds on vegetation, insects, and small birds and reptiles. b) the flood victims were eternally grateful to their benefactors who provided them with food, shelter, and clothing. c) the spectators in the stadium all cheered when the benefactor announced the game would go into overtime. d) the benefactors visiting the laboratory were impressed by the complex equipment the scientists used.

Which line from extremely loud and incredibly close reveals a melancholy tone? as for the bracelet mom wore to the funeral, what i did was i converted dad’s last voice message into morse code, and i used sky-blue beads for silence, maroon beads for breaks between letters . . she said it was the best gift she’d ever received. i asked her if it was better than the edible tsunami, from when i was interested in edible meteorological events. she said, “different.” i wanted to tell her she shouldn’t be playing scrabble yet. or looking in the mirror. or turning the stereo any louder than what you needed just to hear it. it wasn’t fair to dad, and it wasn’t fair to me. i made her other morse code jewelry with dad’s messages—a necklace, an anklet, some dangly earrings, a tiara—but the bracelet was definitely the most beautiful, probably because it was the last, which made it the most precious.