The answer is
s waves cannot pass thru the outer core
Rivers are part of landforms such as mountains, prairies and valleys. They can be part of different land forms a the same time.
I believe the answer is: conducting research to learn about the social world
The research in sociology is usually done in order to uncover whether a certain situation created by society affect the lives of the smaller social group. Rather than relying only on the words from authority, it reveal the perspective of all people involved starting from the bottom of society all the way to the power holders.
Answer: Keep discussions on proper track
Explanation:
Discussion forums are the online board where people can place their message to obtain a response from members of that bulletin board.It is also regarded as discussion board.It helps in keeping discussion on the subject and points on which it is supposed and intended towards .Any distraction can be avoided.
Other options are incorrect because discussion forums do not compel every member for participation, synchronous communication facilitation and motivating immediate response from people.
