How have supernovae affected the development of life on Earth?
What will be an ideal response?
Supernova shock waves are capable of triggering star formation, and the formation of the Sun may have been triggered by a supernova. Supernovae are responsible for producing elements heavier than carbon, so most of the material that the Earth is made of comes from supernova events. Most chemical elements required for life also are created in supernovae. Nearby supernovae can have a negative effect on life on Earth. The eruption of a nearby supernova may have been responsible for an extinction event two million years ago.
You might also like to view...
Why do cumulus clouds often form, disappear, and then reform in the same place?
What will be an ideal response?
The greater the mass of the foreground cluster of galaxies, the more warped the images of the distant galaxies are when they undergo gravitational lensing
Indicate whether the statement is true or false
A 1-centimeter cubed sugar cube scaled up by a factor of 10 has a total surface area of
A) 60 cm2. B) 600 cm2. C) 6000 cm2. D) none of the above
Except for such nuclear processes as nuclear reactors, nuclear bombs, and radioactivity, all of the common forces we see around us daily are due to just two underlying or "fundamental" forces. One of these two forces is the electromagnetic force
The other is A) the gravitational force. B) the frictional force. C) contact forces. D) the strong nuclear force. E) the chemical force.