Answer:
This process is known as doping. It can be done by adding either of two types of impurity to the crystal.
(A) By adding electron rich impurities i.e., group 15 elements to the silicon and germanium of group 14 elements.
hope it's helpful
The answer to this question is 5
Money so i can get a nice body with the money hahah
You could let the air out of the balloon while it is under the water with a container filled with water upside down over it. And measure the water displacement.