Answer:
When the rays come closer together, the image is smaller and sharper than what can be seen with the eye alone.
Explanation:
This is an example of negative reinforcement.
Her mother scolded her every time Jane bit her nails - so Jane learned that every time she bites her nails, she is going to be scolded sternly by her mother. In order to avoid that, she stopped biting her nails, and thus the reinforcement was successful.
Answer:Shirley Chisholm
Explanation:
She worked at a child care healthcenter. She attended school in the evening while working at the child health care center. During her high school days she was a great debater which later informed her interest in politics
The answer that best fits the blank is serfs.
