Answer:
Not sure why a student would be staring at you, but it depends on the situation.
Explanation:
The student might have a question to ask you, but might not know how.
Or,
The student might know the answer to a certain question to a problem you might be asking the class.
If this happens again, maybe ask the student what she might need, or to tell her to stop staring.
Hope this helps.
Answer:
a. Behavior is an action that can be observed with lab equipment.
Explanation:
Behavior cannot be measured, cannot only be measured with lab equiptment, and behavior can't be private.
Answer:
The Cold War ended in 1991 when the USSR collapsed.
