Sort the statements based on whether they describe the lives of small stars, large stars, or both. Only a Small Star
Both
Only a Large Star
It increases in size
when core hydrogen
is used up.
It becomes a white
dwarf when fusion
ends.
It can fuse hydrogen for
billions or trillions of
years.
It may turn into a
black hole at the end
of its life.
It becomes a neutron
star after the
supernova
phase.

Waste water from industries and domestic sources can be treated by chlorination or ultraviolet radiation. there are pros and cons to using either chlorine or uv radiation to kill harmful microorganisms. what is one reason chlorination would be preferred over ultraviolet radiation? a) chlorine only eliminates visible impurities and is ineffective against microorganisms. b) chlorine not only kills bacteria but provides a residual effect on returning microorganisms. c) uv radiation can be used only to treat drinking water and is ineffective in treating waste water. d) ultraviolet radiation is more effective