Answer:
I can't sorry have a good day
Explanation:
Answer: welfare
Explanation: Ethics and Social Welfare of a critical and reflective nature concerned with the ethical issues surrounding social welfare practice and policy. It has a particular focus on social work (including practice with individuals, families and small groups), social care, youth and community work and related professions. Intercultural and international boundaries on the serious ethical issues relating to professional interventions into social life. Through WHO contribute towards deepening understandings and further ethical practice in the field of social welfare.
Answer: a. Discharged, untreated, into surface waters.
Explanation:
Most of the waste water and sewage water is left untreated into the surrounding soil or water which is the main cause of pollution. Due to lack of drainage system or septic chemical treatment the sewage water drain from major cities is discharged into the surface water untreated. This water can deteriorate the quality of portable water and can affect the population of many aquatic species reducing the aquatic biodiversity. The sewage discharge consists of nitrogen and phosphorus like minerals which can result in algal bloom causing eutrophication.
I want to say government or farming. Farming because it started a sort of trade and barter system, but government because it created regulations for a village lifestyle? I think it depends on what time period you're studying.