1) How many people does it have in the world nowadays? a) 2 thousand (2.000) b) 10 thousand (10.000) c) 8 billion (8.000.000.000) d) 3 million (3.000.000) e) 2 billion (2.000.000.000) 2) Where does the most part of people live? a) On the farms b) In the montains c) In the cities d) In islands e) In the Moon 3) Have you ever seen this sign? It's the UN sign. What does UN stand for? a) Under Nowhere b) Unlimited Netflix c) Ultimate Nest d) United Nations e) Unlike Nothing 4) How many years does it take to a plastic water bottle be totally decomposed? a) 10 years b) 2 years c) 80 years d) 150 years e) 450 years 5) How many liters of water it is necessary to produce a cotton T-shirt?  a) 30 liters (60 water bottles) b) 100 liters (500 water bottles) c) 5 liters (10 water bottles) d) 2.500 liters (5.000 water bottles) e) 500 liters (1.000 water bottles) 6) How many years did the oldest person in the world live? a) 105 years b) 122 years c) 101 years d) 149 years e) 118 years 7) How many inhabitants (people living) are there in Brazil today? a) 500 thousand (500.000) b) 5 million (5.000.000) c) 70 thousand (70.000) d) 203 million (203.000.000) e) 1 billion (1.000.000.000) 8) Which of the following vehicles do you think is considered the LEAST ( ⏬ ) polluting for cities? a) Car b) Motorcycle c) Bicycle d) Bus e) Metro 9) Which of the following transportantions do you think is the FASTEST (➕)? a) Metro b) Train c) Submarine d) Ship e) Airplane 10) We use a lot of electric appliances and eletronic devices in our daily routine. Witch of the following ones wastes more electricity? a) Refrigerator b) PC (Personal Computer) c) Air Condicioning d) Hair Dryer e) Electric Guitar

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