I believe it is c they were ruled by emperors
Answer:
All the answers are correct because research is multifaceted
Explanation:
While doing population studies, it is important to understand the population and they demographic, age, sex, location etc. This could have incredible effects on comparative studies.
It is also important to maintain an open line of communication to give instructions and follow up on the persons in the event that this kind of data is required. But like with population study the error that often comes into play is the element of human dishonesty. By keeping an open line of communication, the provisions can be made to keep this under check.
Finally, making sure that all the participants understand what is being asked of them is key to the open line of communication as not to create any misgivings or misunderstanding.
China is the largest producer of hydroelectricity, followed by Canada, Brazil, and the U.S.
"Depending on where they live, couples can be fined thousands of dollars for having a supernumerary (extra) child without a permit, and reports of forced abortions or sterilization are common. The law also offers longer maternity leave and other benefits to couples that delay childbearing. Those who volunteer to have only one child are awarded a "Certificate of Honor for Single-Child Parents." Since 1979, the law has prevented some 250 million births, saving China from a population explosion the nation would have difficulty accommodating"
The answer is False
Explanation: For parents all the needs of their children are equally important, even though they can be concerned about the economic life for a future, a children needs so many more things.