Which event is caused by gravity?

Only people in ap world history can can someone give me a question and a statement to present to the class about chapter 15,16,or17

Question 4(multiple choice worth 10 points elise chooses to watch a movie with her friends instead of studying for her english test. this is an example of wasting talent getting distracted allowing others to set goals

How much hazardous chemical waste is produced per year in the us? a) 25 million metric tons b) 100 million metric tons c) 250 million metric tons d) 700 million metric tons e) 950 million metric tons