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It isn't. Most mass extinctions in the history of Earth resulted from radical environmental and climatological changes, sometimes brought on by volcanism, sometimes because of a natural fluctuation in Earth's ecologies, sometimes due to meteorite impact.
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What process is responsible for changing liquid water into water vapor?
The change of phase from liquid to gas is called vaporization (when the phenomenon is in all the mass) or evaporation (when the phenomenon is only at the surface).
Large craters found on earth support the hypothesis that impact events have caused?
mass extinctions of animals and plants
Is it possible that a body may have non zero mass but zero weight?
If no large body was influencing your environment, you would be floating (space is as close as we've gotten to such a phenomenon).
Does the sun get smaller as the hydrogen gets burned up?
No. The sun actually expands slowly as the hydrogen fuel burns. Eventually the sun will be so large that its out layers will extend out to earth's orbit. The earth will be burned to a crisp long before that, but it will then be completely incinerated and its mass converted into plasma within the sun. Certainly the mass of the sun decreases as it burns its fuel. But that is due to what is called mass deficit. When fusion happens, some of the mass of the protons and neutrons being fused to make a heavier nucleus is converted into binding energy or nuclear glue to hold that new nucleus together. Most of the mass the sun is losing is lost to this phenomenon.
Is Sirius a low mass star?
It is, but at twice our suns mass, Sirius A is on the limit, of being an intimidate mass star. Sirius A will have a life cycle similar to that of our own star which is a low mass star, but burns hotter. Sirius B is a companion white dwarf star with a mass of around the same as our sun. Previously, it was thought to have been a star with a mass of around 5 times that of our sun, burning out more quickly than Sirius A.
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 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.
Climate changes have been linked to almost all mass extinctions of life on Earth?
true
Is it true Climate changes have been linked to almost all mass extinctions of life on Earth?
true
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
What might have caused mass extinctions?
Ice age
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
Which processes is responsible for changing liquid water into water vapour?
The change of phase from liquid to gas is called vaporization (when the phenomenon is in all the mass) or evaporation (when the phenomenon is only at the surface).
What processes is responsible for changeing liquid water into water vapor?
The change of phase from liquid to gas is called vaporization (when the phenomenon is in all the mass) or evaporation (when the phenomenon is only at the surface).
What process is responsible for changing liquid water into water vapor?
The change of phase from liquid to gas is called vaporization (when the phenomenon is in all the mass) or evaporation (when the phenomenon is only at the surface).
