1) In 1800, the world's population was _________. a) 1 Billion b) 2 Billion c) 3 Billion d) 4 Billion e) 5 Billion f) 7 Billion 2) In 1960, the world's population was _________. a) 1 Billion b) 2 Billion c) 3 Billion d) 4 Billion e) 5 Billion f) 6 Billion 3) In 1987, the world's population was _________. a) 1 Billion b) 2 Billion c) 3 Billion d) 4 Billion e) 5 Billion f) 6 Billion 4) In 2011, the world's population was _________. a) 4 Billion b) 5 Billion c) 6 Billion d) 7 Billion e) 8 Billion f) 9 Billion 5) In 2045, the world's population will be _________. a) 4 Billion b) 5 Billion c) 6 Billion d) 7 Billion e) 8 Billion f) 9 Billion 6) How many babies are born every second? a) 5 b) 10 c) 15 d) 18 e) 22 f) 26 7) How many people die every second? a) 1 b) 2 c) 3 d) 4 e) 5 f) 6 8) In 1960, how old does an average person live? a) 33 b) 43 c) 53 d) 63 e) 73 f) 83 9) In 2010, how old does an average person live? a) 39 b) 49 c) 59 d) 69 e) 79 f) 89 10) In a megacity, there are less than 10 million in population. a) True b) False 11) In 1975, there are three (3) megacities. a) True b) False 12) In 2010, there are currently 21 megacities. a) True b) False 13) By 2050, 50% of the population will be living in a megacity. a) True b) False 14) 13% of the world's population does not have access to clean drinking water. a) True b) False 15) According to National Geographic, we do not need balance but rather SPACE. a) True b) False

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