Answer:
Answer is confidentiality.
Explanation:
Confidentiality is very important because it helps to build and develop trust, thereby allowing free flow of information between the researchers and subjects.
A large number of people move up the social class ladder, a large number move down, and the social class system shows little change in exchange mobility.
Social mobility is the movement of a person's social position from one to another. The shift could be greater, lower, intergenerational, or intragenerational, and it's not always possible to tell whether it's for the better or worse.
Exchange mobility shows that society is divided into classes, and that these classes keep their population levels largely constant. If a certain number of people shift from the middle class to the upper class, an equal number is anticipated to go in the opposite direction.
To learn more about mobility here: brainly.com/question/359904
#SPJ4
The correct answer is conservation.
Conservation refers to efforts taken by individuals and larger groups/ organisations to protect the environment, nature and animals. Conservation can be practiced in several ways including:
i) Conservation of water- by limiting necessary water usage
ii) Using recyclable materials and biodegradable items, while avoiding the use of plastic items
iii) Using solar energy and other sustainable options that are better for the environment.
iv) Limiting deforestation
The answer is 6800 BCE.
Jericho, one of the world's oldest villages, began an impressive building program of structures to protect their grain surplus around 6800 BCE.
<h3>What is Jericho and why is it important?</h3>
A Palestinian city in the West Bank is called Jericho. It is situated in the Jordan Valley, with Jerusalem to the west and the Jordan River to the east. It is also the oldest continuously inhabited city on the Earth.
The city's archaeological site is very significant because it shows how early permanent communities developed and how early civilization began. Traces of Mesolithic hunters' visits, carbon-dated to around 9000 BCE, as well as a protracted period of habitation by their descendants have been discovered.
To know more about Jericho, visit:
brainly.com/question/3305856
#SPJ4