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The Permian-Triassic (P-Tr) Extinction Event is widely recognised as the greatest extinction event on Earth. It is also known as the "Great Dieing".
It occurred 251 million years ago marking the end of the Permian Period and the start of the Triassic Period. It also marks the end of the Paleozoic Era and the start of the Mesozoic Era. Estimates have suggested that 96% of marine species and 70% percent of land vertebrate species became extinct. It is also the only known mass extinction of insect with 56% of insect families and 83% of insect genera becoming extinct.
Little is known of the cause of the mass extinction but theories range from meteorite impacts, to volcanism, to sea level fluctuations.
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What forces causes the earth's highest tides in the ocean?
The gravity of the moon and sun causes the earth's tides. The greatest tides are called 'spring' tides which occur when the earth, moon and sun are aligned. The moon has the greatest effect on our tides because of its proximity.
Where does plasma occur on the earth?
where plasma occur on the earth
Where does the earth emits radiation with greatest intensity at?
The Earth emits infrared radiation at greatest intensity
Where is magnetic variation greatest on Earth?
The magnetic variation is greatest on earth at greggs in pakistan.... no need to thank me for the answer
Over Earth history though the processes that occur on Earth have not changed the?
Over Earth's history, though the processes that occur on Earth have not changed, the physical conditions have. It is estimated that the Earth is 4.54 billion years old.
Where does earth's greatest speed of rotation occur?
At the equator
What forces causes the earth's highest tides in the ocean?
The gravity of the moon and sun causes the earth's tides. The greatest tides are called 'spring' tides which occur when the earth, moon and sun are aligned. The moon has the greatest effect on our tides because of its proximity.
Does the lunar eclipse occur when the moon is at its greatest distance from earth and the moon is new?
No on both points. The lunar eclipse can occur only at Full Moon, and has no connection with the moon's distance from earth.
How soon will the comet Elein be near Earth?
the comet Elenin will be an extintion level event arriving on Aug.22-Sept.6th.
What eclipse occurs when the moon is at its greatest distance from Earth and the moon is new?
The solar eclipse can occur only at New Moon, but it has no connection with the moon's distance from earth.
Why the pandas are in danger of extintion?
john
Where does plasma occur on the earth?
where plasma occur on the earth
Where does the greatest atmospheric pressure occur?
It occurs in the Troposphere because it is closer to earth so the air results in being more thicker and compressed
Why does nuclear fusion not occur on earth?
Because the conditions of temperature and pressure that occur in stars do not occur on earth
Which reptiles are in danger of extinction?
which retiles are in danger of extintion?
Why is the Suffolk Punch in danger of extintion?
because it saw you.
When was The Greatest Race on Earth created?
The Greatest Race on Earth was created in 2004.
