Answer:
Questionnaire
Explanation:
A questionnaire is a research tool that is consists of a series of questions and that used for collecting information from the population. It is a kind of written interview conduct by a researcher to the population for gathering information. These are carried out by the researcher's face to face interviews, collection the information through phone or by post. It is a cheap and very quick way to get information. It is not a time-consuming process. Because the researcher need not be there with the participants. There could be a closed question, opened question in the questionnaire.
In economics, the term marginal<span> is used to indicate the change in some benefit or cost. when an additional unit is produced. For instance, the </span>marginal revenue<span> is the change in. total </span>revenue<span> when an additional unit is produced.</span>
<span>In Ancient Athens there are private
slave and public slaves. public slaves were government owned. children
start as slaves at a young age. If they are young, attractive, healthy,
and submissive their parents would sell them for $180.00. kidnapping
was another way for slavery. </span>
4. In a command economy, individuals have less economic freedom.
These are what my teacher said
1.C
2A
3B
C
