The answer is Vas deferens
Answer:yes
Explanation:
Impure substance is a mixture of 2 or more molecules
I believe that the answer is A, if I am not mistaken!
Throwing a ball is an example of kinetic energy. I do not have any proof or any reasons, but for now I just know that it's kinetic energy. You can also look it up and you'll see the answer automatically. Hope this helps :) If you want any proof, please feel free to ask me thru contact :)