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​Glisser votre souris  au-dessus des liens de section afin d’accéder aux sections françaises.

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11

We are told that there are 300 billion stars in the Milky Way, and the Universe has upwards of 70-sextillion stars. The ratio of stars in the Milky Way to universe is 3 to ___.

• 70 million
• 700 million
• 70 billion
• 700 billion

12

One trillion seconds is about ___ years.

• 2,000
• 21,000
• 32,000
• 45,000

13

In one day your heart beats about 100,000 times, but the canary's heart beats about ___ times as many as a human's.

• 10
• 14
• 20
• 27

14

If you could stretch out all of a person's blood vessels, they would be able to wrap ___ around the world.

• a quarter way
• half way
• once
• twice

15

More than ___ people live on less than $2.50 a day. And about 40% of that number live in extreme poverty with less than $1.25 a day. 

• 300,000
• 3,000,000
  
• 30,000,000
  
• 3,000,000,000

16

A human's large intestine is about 1.5 meters. If a human's small intestine is stretched out, it is as tall as ___.

• a giraffe
• a human
• an elephant
• the Empire State Building

17

The odds of finding a pearl in an oyster is 1 in 12,000. These odds are about the same of the following incidents, except ___.

• being struck and killed by lightening
• ​injured by a toilet
• dying in a plane crash
• winning an Oscar

18

It takes about ___ grains of sand to cover the city of Los Angeles, CA, to a depth of one foot.

• 17 million 
• 17 billion
• 17 trillion
• 17 quadrillion

19

It's roughly estimated that the ratio of humans to ants is 1 to ___.

• 10,000
• 100,000
• 1,000,000
• 1,000,000,000

20

DNA from one of your cells is 6 feet long when uncoiled and placed end to end. Do this for all of your DNA and the resulting strand would be about ___ round trips to the moon. 

• 10,000
• 150,000
• 300,000
• 450,000