1- The Amazon rainforest produces about 20% of Earth oxygen.
2-Earth is 7,926 miles wide which is 12,756 km
3-Tiny pieces of space debris colliding with earth add about 100 tons to a planet everyday.
4-Today 175 countries observe Earth Day.
5-The Outback makes up about 70% of australia's land but only by 3% of the country's population lives there.
6-The average surface temperature of earth is 46 degree Fahrenheit or 7.7 degree celcius
7-Mount Everest was once simply known as peak 15.
8-Earth's atmosphere is 78% Nitrogen 21% Oxygen and 1% argon.
9-Humans drilling for oil once caused an earthquake that measured 5.5 on the Richter scale
10-If you were to stand at the oceans deepest point , the water pressure would make it feel like 50 Jumbo Jets were piled on top of you.
11-When Washington's Mount Saint Helens erupted on May 18 ,1980 within three minutes the blast blew down and scorched 23 square miles of forest.
12- Earth is not a perfect sphere .it is flattened at the poles and bulges at the equator.
13-Do you know? all water on Earth is recycled. so in a sense you are drinking water that Dinosaurs drank millions of years ago.
14-only 2.5 % of Earth's water is freshwater and lakes and rivers hold less than 1% of it.
15-the mid-Atlantic ridge an underwater mountain range the runs nearly the entire length of the Atlantic Ocean.
16- In Yellowstone National Park Hot water and steam ejected from the Earth. which is home to about 60% of the world's geysers.
17- 600 million years ago Earth was home to one giant super continent named pannotia and one giant ocean Panthalassic.
18- Earth's core is Solid metal surrounded by liquid metal.
19-Earth is about 4 to 5 billion years old.
20-Earth is covered in about 16 tectonic plates that are on average 60 miles(96.5 km) thick
20 EARTH IS ABOUT 4-5 BILLION YEARS OLD. y.
21 Earth is covered in about 16 tectonic plates that are on average 60 miles (96.5 km) thick.
22 North America and Africa are moving apart about as fast as human fingernails grow.
23 Earth is home to at least 5,000 different cultures.
24 You'd have to swim about 6.7 miles (10.9 km) down to reach the deepest point in the sea, the Pacific's Challenger Deep.
25 Earth is the only planet in our solar system with plate tectonics.
26 At about 840,000 square miles (2,175,600 sq km), Greenland is the world's largest island.
27 The Nile River has long been considered the longest river in the world, but a group of scientists who recently mapped the Amazon River claim it is 65 miles (105 km) longer than the Nile.
28 The Caspian Sea, the world's largest lake, was reportedly named "sea" because when the ancient Romans arrived there, they found the water to be salty.
29 Sixty million years ago, 42-foot- long (13 m), 2,50o-pound (1,135-kg) snakes slithered across Earth's tropical rain forests.
30 At 1,500 feet (457 m), the high- est dunes in the Sahara Desert are taller than the Empire State Build- ing in New York, U.S.A.
31 Water flows down the drain both clockwise and counterclockwise in both the Northern and Southern hemispheres.
32 Four oceans are officially recognized the Pacific, Atlantic, Indian, and Arctic-but there is support for naming a fifth ocean near Antarctica the Southern Ocean.
33 More than 8o percent of Earth's surface, both above and below sea, is shaped by volcanoes.
34 Light from Earth's major urban areas is visible from space.
35 Earth spins on its axis at a speed of more than 1,000 miles per hour (1,600 kph).
36 Earth travels at about 66,70o miles per hour (107,300 kph) while orbiting the sun.
37 An object the size of Mars slammed into Earth more than four billion years ago, breaking off a chunk of the planet that later became the moon.
38 Most major animal groups appeared on Earth more than 550 million years ago.
39 Earth's crust is about 3 to 6 miles (4.8 to 9.6 km) thíck under the oceans and as much as 25 miles thick (40.2 km) under the continents.
40 In the 1970s, Russian scientists tried to drill a hole through Earth's crust, but they only made it 7.6 míles (12.2 km) in 19 years.
41 Earth's solid metal core is about as hot as the surface of the sun- about 9,000°F (about 5,000°C).
42 Earth's atmosphere has no real boundary; it just grows thinner and thinner until it fades into space.
43 All weather occurs within eight miles (12.8 km) of Earth's surface.
44 We couldn't live on Earth with- out ozone-a form of oxygen that protects the planet from the sun's powerful ultraviolet rays.
45 IT TAKES THREE DAYS TO FLY TO THE MOON FROM EARTH.
46 Scientists predict that North America and Africa will collide in about 250 million years.
47 Most objects on a collision course with Earth burn up in the planet's atmosphere and never make impact.
48 Tortoises have lived on Earth for about 230 million years, since the beginning of the age of the dinosaurs.
49 Alaska experiences an average of 60 earthquakes a day.
50 Large cities, major roads, bridges, airports, and dams are all visible from space.
51 The deepest lake on Earth is Asia's Lake Baikal, a little more than a mile (1.6 km) deep.
52 If a full gallon jug represented the world's water, freshwater would equal only about one tablespoon.
53 There may be more than 25,000 islands in the Pacific Ocean.
54 Fiji alone consists of 332 islands.
55 The Pacific Ocean is about 15 times larger than the United States.
56 There are two types of monarch butterfly. One is found in North America, the other in South Amer- ica. Scientists believe that the two species separated about two million years ago when world sea levels were much higher than today.
57 On Antarctica, there are mountains more than 16,000 feet (4,877 m) tall covered in massive ice sheets.
58 More than half of Earth's seven billion people live in Asia.
59 More than 300 species of tree frog live in Earth's tropical rain forests. They all have a special sticky pad on each toe that helps them move on the undersides of leaves.
60 Asia has more farmers and more cíties with a population of a million or more than any other continent.
61 The Ganges Delta in Asia is shaped like a triangle. The middle of the delta is made up of swamps, forests, small islands, and creeks.
62 The geographic North Pole lies roughly in the middle of the Arctic Ocean beneath 13,000 feet (3.962 m) of water,
63 North America's Great Lakes hold about 20 percent of Earth's fresh water.
64 If everyone on Earth jumped at the same time, it would have no effect on the planet's motion.
65 Straddling the Peru-Bolivia border, Lake Titicaca is the high est in the world, perched at about 12,500 feet (3,810 m) above sea level,
66 Earth's temperature rises slightly during a full moon.
67 There are about 3,000 lightning flashes on Earth every minute.
68 When flowers are in bloom in North America's Sonoran Desert, bees and birds pollinate them during the day. At night, bats take over the job.
69 Scientists predict that with the movement of Earth's plates, San Francisco and Los Angeles-which now are separated by about 380 miles (611 km)–will lie next to each other in about 15 million years.
70 There are about half a million detectable earthquakes in the world each year.
70 The interior of Antarctica experi- ences icequakes, tremors within the ice sheet that covers the continent.
72 Earthquákes don't cause volcanic eruptions.
73 POWERFUL EARTHQUAKES CAN SHORTEN A DAY ON EARTH, BUT ONLY BY A FEW MILLIONTHS OF A SECOND.
74 Forests cover about 30 percent of the planet's land.
75 The International Date Line is an imaginary line that zigzags between Russia and Alaska and down the Pa- cific Ocean. It separates two consecu- tive calendar days, so that the date in the Eastern Hemisphere to the left of the line-is always one day ahead of the date in the Western Hemi- sphere-to the right of the line.
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