The sun does not get replaced, firstly it goes through many stages and then when there is no more hydrogen to burn, it will explode. For the Earth that means we will all DIE!!!! But that won't happen for a long while.
An azalogue is a compound which is analogous to another, the only difference being that a carbon atom, normally a CH group, has been replaced with a nitrogen one.
Impossible to answer without knowing exactly what the breakage is. Chances are, it won't be repairable, and will have to be replaced.
The chances are about 300 MILLION-to-One.
I dont think there is one
The harpsichord was replaced by the piano.
The chances are not to big but you can. It matters were you in your fertility cycle or not.
One crisis came after another ~(≧v≦)~
Chances are you both like what you see and are attracted to one another.
No, Usually if you find one, chances are there is another one around somewhere.
Throw it away, buy another one. Replaced.
The Glorious Revolution of 1688
If one nucleotide is replaced by another, it is called a point mutation. This type of mutation involves a change in a single nucleotide within the DNA sequence.