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RafaIt depends on what you mean by explore. Satellites have photographed the entirety of the surface, including the oceans. If you mean explored by a human actually going there and observing the place and its intricacies, the ocean, caves, rain forests, and unpopulated forested mountains like in Alaska and northern Canada, are largely unexplored. If you follow roads on Google maps you can see huge areas of rough unpopulated areas that are unlikely to have had any real in depth exploration.
A very Very small amount. Maybe .01 percent.
We have only now started to see the edge of Our system that circles our sun,
the Solar System is just a small smudge on the Universe to explore.
That (this) is hard to answer because it depends on what you mean by 'explored'.
The human race has photo's from space of pretty much every square inch of this planet, but that does not mean that a human has actually been there; and that does not include the oceans (whats under the surface; seems as though we discover new things there every day) - so you can only really say we have a very good ideal of what 1/3 of this planet is like.
We (the human race) have only went to one other planetoid (the moon) and while we have satellite mapped it, we have only actually walked on a few hundred square feet of it.
Following this guideline the human race has sent probes to, and observed all significant astronomical bodies in this solar system. We have sent probes to map, photograph, and take other readings of pretty much all of them. This gives us a very good ideal of the overall layout of things, but we are far from finishing with this planet and it will be hundreds of generations (at current rate) before we have made a dent in exploring even our closest two neighboring planets.
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Is there more water on earth then oil?
Yes, there is more water on Earth than oil. Water covers about 71% of the Earth's surface, while oil reserves are limited and make up a much smaller percentage of Earth's total volume.
What is the name for the periods of time where the Earth has been much colder?
The periods of time where the temperature of the Earth has been much colder then traditional times are referred to as ice ages. It is a long term reduction in the temperature of the Earth resulting in the expansion of the polar ice caps.
When was the star polaris discovered?
Polaris has been known to ancient civilizations for thousands of years. It has been used for navigation, and its importance has been documented in various historical texts. The star's exact date of discovery is not known since it has been in the night sky for centuries.
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Nitrogen makes up about 78% of Earth's atmosphere because it is relatively unreactive and has been preserved over time. This high percentage results from the balance of gases released from volcanic activity and biological processes.
Is Kepler 22B the biggest planet?
Kepler-22b is not the biggest planet. In fact, it is classified as a super-Earth, meaning it is larger than Earth but smaller than Uranus or Neptune. Some exoplanets discovered by astronomers are much larger than Kepler-22b.
