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(1) the three types of human memory allow a person to remove or retain information, as needed. (2) everything that we notice—see, smell, hear, or touch—forms a brief mental impression called a sensory memory. (3) information is stored in this sensory memory for only a few tenths of a second before it disappears forever. (4) information that is retained for slightly longer enters what’s called short-term memory. (5) this form of memory can store about seven items for about thirty seconds—about enough information to dial a telephone number. (6) in order to be remembered for a long period, information must pass into long-term memory. (7) no one knows just how much information can be stored in a person’s long-term memory, but the capacity seems enormous.
1. in general, the major details of this passage are

a. reasons why we remember things.

b. types of human memory.

c. ways to remember for a long period.