Answer:
Memory is a component of the brain where new information and old information are stored and can be retrieved very quickly.
There are two major types of memory:
1. Long-term memory
2. Short-term memory.
The Long-term memory is the place where information have been stored for a long time. This memory is what makes you remember your name, your house address, your favorite food, your class mate's names and other information.
The short-term memory on the other hand is the type of memory that stores events or information for only a short period of time. This explains why you can be introduced to five people, but ten minutes later, you only remember one name, or no names at all!
Events or memories that are in the Short-term memory can be made to enter the long term memory with the help of some techniques.
That is a vague question. To the modem I believe.
Mass number is the correct answer
