Match each item to the time it best represents.

1. humans began using stone tools
Industrial Revolution
2. birth rates declined, and the average life expectancy increased
1999
3. the world population totaled six billion people
Paleolithic Era
4. the annual population growth rate reached its peak
late 1960s

Arrow A in Figure 27-1 represents ____.a.carbon dioxide in the atmospherec.solar radiationb.heat trapped near Earth's surfaced.chlorofluorocarbonsPlease select the best answer from the choices providedABCD Which of these is the best example of a situation that would lead to disillusionment? A. You watch a football game in which you expect your team to get creamed, and they do. B. You plan to ask someone out on a date but find out he or she is dating someone else. You go to the store to buy groceries, and on the way you're attacked by a dog. D. You were sure you bombed your history test , but you got a really good grade. Can someone pls help In 4-5 sentences reflect on what P.A.P.A. Is and why it is important for you to learn this information. hy plzzzzz helpp fasttttttttttttrrr 1 point1. To win a prize, Jada must get a ball with an even number. Should she tryto win the prize using the tank of table tennis balls or the tank of golf balls?A large fish tank is filled with table tennis balls with numbers written on them. Jada chooses 10table tennis balls from the tank and writes down their numbers.13513.24153A second tank is filled with golf balls with numbers written on them. Jada chooses 10 golf ballsfrom the tank and writes down their numbers.1452622.148O Jada should use the tank of tennis balls.O Jada should use the tank of golf balls.1b. Explain your reasoning."3 pointsYour answer Thevolumeoccupied by 5.0g in neon03368 atm anda temperatureof 35C will be? helpmeeeeeeeeeeeeeeee mention 3 components that can be found at the back and front of the system unit - "nothing in this world is worth turning ones back on what one loves".- what does this quote mean??? Phillipa says that ( 27 9 ) 3 9 + 18 = 42 . Is she correct? If not, what is the correct answer? A. She is correct. B. She is not correct. The correct answer is 2. C. She is not correct. The correct answer is 24. D. She is not correct. The correct answer is 26. explain the requirements and causes that led to changing the subject of vocative discourse in Quran after the migration to madina As a train starts from rest then accelerates down the track, coming toward an observer faster and faster, the frequency of the sound waves coming toward the observer will be which body system makes red blood cells? A. single celledB. multi celledC. plant cell D. animal cellE. tissue F. respiratory G. transport systemH. nervous I. digestiveJ. muscularK. skeletal L. circulatory M. cells N. specialized O. nutrients P. grow Q. respire g 1. Write a mechanism for the Grignard reaction of benzophenone with phenylmagnesium bromide. Be as complete as possible and show electron flow for all steps. Cotton grows in Nepal is transitive or intransitive verb Dana enters a race where she has to cycle and run. She cycles a distance of 25km and then runs for 20km. Her average running speed is half of her average cycling speed. If dana completes the race in 5 hours, what is her average cycling speed ! A plant manager is attempting to determine the production schedule of various products to maximize profit. Assume that a machine hour constraint is binding. If the original amount of machine hours available is 200 minutes, and the range of feasibility is from 130 minutes to 300 minutes, providing two additional machine hours will result in Group of answer choices a different product mix, same total profit as before. the same product mix, different total profit. the same product mix, same total profit. a different product mix, different total profit. Please answer this question as fast as you can.... please say the answer fast, Please send the answer.... FAST Think of the many reasons people take multivitamins and other supplements, and then answer the following questions.What are the pros and cons of using these supplements?Are the pros and cons different for different people (for example, picky eaters, athletes, healthy adults, pregnant women, the elderly, or any other group)?