What do we call:

1. a huge city with more than 10 million people?
   
2. medical operations where a very small hole is made in someone’s body?
   
3. the science of making very small tools and machines by controlling atoms and molecules?
   
4. making an exact genetic copy of something?
   
5. creatures from other planets?
   
6. the process of altering human and animal genes?
   
7. the things that will happen to us in the future?
   
8. a baby whose genetic features have been chosen by its parents?