Explanation:
development is a process that creates, growth, progressed, active change or the addition of physical, economic, environmental, social and demographic components.
The answer would be Pollution. Pollution is an example of a negative externality, which refer to various factors that resulted from company's productivity. One of the common example of this is the air pollution , which will bring harm to the environment
Ethical issues are important in sociological research to protect the fairness and privacy of research participants.
Explanation:
Research ethics are very important in conducting sociological research. Those who take part in research as an active participants their feelings, trust should be maintained properly so that in future days none of the other participants feel hesitate to take active participation in research.
If participant get hurt or receive harm in terms physically or psychologically it would be very for worst for a fruitful research. Sociological research is mainly a qualitative research where people's interaction, their views, ideas are interpreted by researcher. So, the ethics played a vital role in research.
C. They ruled the Arabian Peninsula
Because their geography is close together and Mongolia was an empire wanting to expand