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the purpose for earth day is to help save the earth
allot
Rock slides do!
It depends on the mass of the black hole. The size of the event horizon is directly proportional to mass. Most black holes are what we call "stellar mass" black holes which range from about 3 times to 30 times the mass of the sun. The event horizon of a 30 solar mass black hole would be about 110 miles in diameter. Earth, by comparison, is just over 7,900 miles in diameter. An intermediate mass black hole about 1,340 times the mass of the sun would have an event horizon about the same size as Earth. Astronomers have detected supermassive black holes up to 12 billion times the mass of the sun. Such a black hole would have an event horizon 44 billion miles across, or about 5 times larger than the orbit of Pluto.
The end of human history will come as a thief, who robs a house. No one will expect it. It is possible for the earth to end by fire. There are two conceivable methods. First, Mankind now possesses sufficient technology to make it happen artificially. This is the first time in human history that mankind has achieved this capability. Second, a cosmic event of massive proportions could trigger a catastrophic event that would decimate the earth by fire. I suppose it is also possible that these two events could occur simultaneously, as well.
when the mars sized object slammed into the early earth and moved its axis and formed our moon.
A generous grocery store manager supplied the fundraisers with hot dog buns.
The character Elliott is watching the old science fiction opus This Island Earth on TV, maybe that is what you mean. This is in the early stages of the (E.T.) event.
The microraptor existed during the early Cretaceous period. It became extinct following the KT extinction event, which wiped out the majority of life on earth.
Hoge Lumber Company
the event of these metal is they all found in earth
because of earthquakes
it is natural is it from earth
yes
An extinction event.
If you mean here on earth, yes - for one, the "Tunguska Event" in Siberia early in the 20th century is believed by many astronomers to have been caused by a chunk of Comet Encke breaking off and falling into earth's atmosphere. The "K-T Event", credited with the end of the dinosaur area may have been cause by a comet impact, though an asteroid is usually believed to have been the cause of that. The fact that water exists in huge quantities on the earth is also believed by many astronomers to have come from multiple comet impacts early in earth's history.
The Nibiru Cataclysm is a collision or a near miss between the earth and a large planetary body(Nibiru) that certain groups beleive will take place in the early 21st Century. This doomsday event is very controversial and has many versions.