It 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.
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.
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.
In 1489, much of the world was still unexplored by Europeans. Places like Australia, North America, and Antarctica had not yet been discovered. Additionally, large parts of Africa and Asia remained unknown to Europeans at that time.
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.
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.
All the earth's land surface has been discovered. There are parts that are virtually unexplored, however.
Only if you are referring to earth as a percentage of earth, then earth is 100% of earth
What was discovered was that the moon is composed of material that is very close to the composition of the outer layers of the earth. A theory has been adopted that the earth was struck by a small proto-planet, about the size of Mars, and the collision threw much of the earth's crust into orbit, that eventually formed the moon.
Comparable, in what sense? - Scientists have discovered over a thousand planets outside our Solar System; most of these are much larger than Earth (since those are easier to discover), but several have been found that have a mass comoparable to Earth.
78 %
No planets like Earth of any size have been discovered. For a planet the size of the Moon to have Earth like characteristics, it would have to have a much larger iron core in order to hold on to an atmosphere.
About 33% of the land surface of the earth is desert.
More than half.
Uhm, the first living being on earth, the sun is much older than the earth.
since they are not yet discovered, there is no exact percentage of plants and animals, There is an enormously large number of endangered species living in tropical rain forests, and most of these have not yet been "discovered" by scientists. Because rain forests are quickly being converted to farmland and human settlements, many of these species are becoming extinct before humans know anything about them. (it said endangered species how about the none, can you imagine how many are they) this is the other one: Because most of Earth's biodiversity (the number of species in a given habitat) is not yet discovered and cataloged, it is likely that there are perhaps several million endangered species on Earth. thanks to this site: http://www.scienceclarified.com/El-Ex/Endangered-Species.html
About 45% is covered in a temperate climate
europes land persantage