Earth has 7 continents and over 190 countries., seven; one hundred ninety, A human heart beats about 100,000 times per day., one hundred thousand times, The speed of light is just under 300,000 per second., three hundred thousand kilometers, Mount Everest is 8,849 meters tall., eight thousand eight hundred forty-nine, The human body has 206 bones and 0.2 milligrams of gold., two hundred six; zero point two, Bananas are 75% water by weight., seventy-five percent, There are 8 planets in our solar system., eight, The Eiffel Tower is 324 meters high and grows 15 cm in summer heat., three hundred twenty-four meters; fifteen, A day on Earth is 24 hours, but a year has 365.25 days., twenty-four; three hundred sixty-five point two five, The Amazon River pushes 209,000 cubic meters of water into the ocean per second., two hundred nine thousand cubic meters, A car's average speed on highways is 100 km/h, but it uses 8.5 liters of gas per 100 km., one hundred kilometres per hour; eight point five liters; one hundred, Mount Kilimanjaro has enough ice for 11.7 billion liters of water., eleven point seven billion liters.
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