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 on 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 is 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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