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loss of habitat (change of habitat, turns too cold, too hot, too dry, too wet, ect)
loss of food (where we lose almost all plants and the in tire food chain collapses. along with us)
disease (self explanatory)
freezing (earth freezes over into another ice age)
flooding (after ice age effect the ice melts)
comets (the ash covers sun and kills plants. Same thing with loss of food except the ash can also possibly choke us)
super volcanoes (the ash covers sun and kills plants. Same thing with loss of food except the ash can also possibly choke us)
another animal claims the top of the food chain (mostly sci-fi)
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoHi there!
Extinctions can be caused by a whole range of different contributors! For example the K-T (Cretaceous - Tertiary) extinction was caused my an asteroid impact. But there are also theories such as snow ball earth, or ice ages. Also, the threat could be from a near-by star; A super nova, with gamma radiation directed towards earth could be a contributing factor. As we saw in the largest extinction event (Permian - Triassic extinction) It was caused by sudden high levels of volcanic activity.
Hope this helped!
Wiki User
∙ 10y agoWhich ones? There were five big extinction events and the causes were from extreme temperature changes due to volcanism, meteor strikes and other causes to causes not well understood, such as massive die off due to ocean condition changes, such as acidification.
Wiki User
∙ 13y agoA huge meteorite hit the earth making huge hurricanes that whipped up rocks and blocked out the sun causing the dinosaurs that didn't die when the meteorite struck, die by cold.
Wiki User
∙ 12y agoOne of the reasons is that people take their land.
Wiki User
∙ 13y agobottles in the club im going chisel
Wiki User
∙ 13y agochisel
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What was the outcomes of each of the mass extinctions?
The outcomes of each of the mass extinctions is that animal and/or bacteria die.
Mass extinctions create conditions that promote?
Adaptive Radiation
What caused the last mass extinction?
The Permian mass extinction occurred about 248 million years ago and was the greatest mass extinction ever recorded in earth history exterminating more than 95% of all life on EarthTwo theories have been proposed - the impact of a huge meteorite or comet over 10 kilometres in diameter, or a massive and prolonged volcanic eruption. The volcanic theory appears to be taking the lead at the present time.
What is it called in particular when a high percentage of the species on earth dies off at a particular time?
These are called "mass extinctions", and there have been five such events (that we know of) on the Earth. These are generally caused either by astronomical impact events (such as the asteroid that killed off the dinosaurs 65 million years ago) or massive volcanic activity. The causes of these extinctions has been a matter of some dispute, since they happened so long ago.
When did organisms suffer the largest mass extinction known?
The most devastating mass extinction occurred in the Late Permian (~250 million years ago).
What might have caused mass extinctions?
Ice age
What was the outcomes of each of the mass extinctions?
The outcomes of each of the mass extinctions is that animal and/or bacteria die.
Large craters found on earth support the hypothesis that impact events have caused?
mass extinctions of animals and plants
Mass extinctions are usually followed by what?
When there are mass extinctions they are usually followed by adaptive radiation and very rapid diversification. The last mass extinctions happened 65 million years ago.
What has caused most of the mass extinctions on earth?
Mass extinctions are caused by rapid, global changes. Usually these are changes in climate. Without the right temperatures and precipitation, plants that animals depend on die out, which wipes out the animals. Examples include the Permian-Triassic Extinction, where volcanoes in what is now Siberia caused intense global warming, wiping out over 90% of species, and the K-T Extinction, where an asteroid impact suddenly blocked sunlight for months or years, killing off the dinosaurs and many other organisms.
Do scientists believe that extinctions are uncommon?
No, they are fundamental to the process of evolution. Mass extinctions are less common.
What has happened during mass extinctions?
Bad things
What affects have mass extinctions had on the history of life?
biospere
Why mass extinctions occur and why they often mark divisions of geologic times?
Mass extinctions occur when extreme temperatures happen.https://science.howstuffworks.com/life/evolution/extinction3.htm
Why do you think most extinction's occur as background extinctions?
Most extinctions occur as background extinctions because they are longer time periods unlike the shorter mass extinctions which there were only two in the Paleozoic era, the Ordovician mass extinction, and the Permian/Triassic extinction in which 95% of all marine animals became extinct
Mass extinctions create conditions that promote?
Adaptive Radiation
What has changed most of the mass extinctions on earth?
climate change
