Portable drills may be classified by their ____________________ ...

[jhjkgdfhk]

Portable drills may be classified by their ___________________ _ or by their
  ___________________ _.

 
  Fill in the blank(s) with the appropriate word(s).

Question 2

It is believed that cats were probably originally domesticated to do what?
 
  What will be an ideal response?

[amandanbreshears]

Answer to Question 1

chuck size, power rating
power rating, chuck size

Answer to Question 2

Cats were probably originally domesticated to reduce the problem of mice and rats infesting stored grain.

[jhjkgdfhk]

Thanks for the timely response, appreciate it

[kishoreddi]

Gracias!