As well known and well traveled as our planet is, there are still new
things being discovered every day. In fact, most of our oceans haven’t
even been explored yet which is why when new depths are located; they
often come with hundreds of new species. Rain forests offer up new
animals and plants as often as we can explore them. The Earth is
constantly changing, shifting, and exposing new secrets for humans to
marvel at. It took many years and many great minds to solve the problem
of getting through Earth’s atmosphere into the wide expanse of space
beyond. Here are ten amazing facts about our home that you may not be
aware of.
10. The Atmosphere
Many layers of atmosphere coat our planet including the mesosphere,
ionosphere, exosphere, and the thermosphere, but it’s the troposphere,
closest to the planet itself, that supports our lives and is, in fact,
the thinnest at only about 10 miles high.
9. Deserts
Believe it or not, most of the Earth’s deserts are not composed
entirely of sand. Much, about 85% of them, are rocks and gravel. The
largest, the Sahara, fills about 1/3 of Africa (and it is growing
constantly) which would nearly fill the continental United States.
8. The Big Blue Marble
The Earth is, in fact, not really round. It is called an oblate
spheroid meaning it’s slightly flattened on the top and bottom poles.
7. Salty Oceans
If you could evaporate all the water out of all the oceans and spread
the resulting salt over all the land on Earth, you would have a five
hundred-foot layer coating everything.
6. Lakes and Seas
The largest inland sea (or, sometimes called a lake) is the Caspian Sea which is on the border of Iran and Russia.
5. Mountains
The Andes Mountain range in South America is 4,525 miles long and
ranks, as the world’s longest. Second Longest: The Rockies; Third:
Himalayas; Fourth: The Great Dividing Range in Australia; Fifth:
Trans-Antarctic Mountains. For every 980 feet you climb up a mountain,
the temperature drops 3-1/2 degrees.
4. Deep Water
The deepest lake in the world is in the former USSR and it is Lake
Baikal. It has a length of 400 miles, a width of roughly 30, but its
depth is just over a mile: 5,371 feet down. It is deep enough, so is
speculated, that all five of the next largest lakes: The Great Lakes
could be emptied into it.
3. Shaky Ground
Earthquakes can be catastrophically destructive and many a year are
deadly. However, the Earth releases about 1 million a year, almost all
are never even registered.
2. Hot, Hot, Hot
Most people believe that Death Valley, California, U.S.A. is the
hottest place on Earth. Well, occasionally it is, but the hottest
recorded temperature was from Azizia in Libya recording a temperature of
136 degrees Fahrenheit (57.8 Celsius) on Sept. 13, 1922. In Death
Valley, it got up to 134 Fahrenheit on July 10, 1913.
1. Dust in the Wind
Experts from the USGS claim that roughly 1,000 tons of space debris rains down on Earth every year.
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