Answer:
Some technological choices may have been less successful. Examples are lead pipes, used in the antique and continues to be used in house connections. until recently water and sanitation systems are at need of constant maintenance and rehabilitation. which was already seen in Roman aqueducts. such as calcium carbonate incrustations formed inside, and without constant removal it will stop the water flow. the same as for modern systems they need to be taken care of or else they will not function properly. that is the bigger problem the constant replacement and fixing. A long term debatable issue is what source to use and whether to use ground or surface water. surface water is needed for bigger systems, and smaller systems usually use ground water. this is the current question how far is it economically possible to expand the systems. once these systems are expanded the only thing wrong is being over exposed.
Explanation:
Answer:
b)
Explanation:
Sensitive issues refer to topics which people tend to feel uncomfortable talking about (Like harassment, addictions, violence)
Many studies on this topic have shown that when people are in front of other person who's interviewing them they might hide some aspects of themselves to create a better impression on the interviewer, therefore, the information acquired this way is not 100% right.
Regarding <u>sensitive issues, it is even more difficult for people to talk about them specially when it comes to an stranger</u> (like a researcher). Thus, it is not recommended to address sensitive issues in interviews but rather by <u>self-administered questionnaires in which the person doesn't have to interact with another person.</u>
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When it comes to complicated issues, a questionnaire is not recommended since it could leave the researcher without enough information, and since it's <u>a complicated issue, the researcher might want to be there to clarify people's answers.</u> Therefore, <u>for complicated issues, it is better to use interviews.</u>
Thus, the correct answer is b) Use self-administered questionnaires for sensitive issues and interviews for complicated issues
Answer:
the difference between fundamental and derived unit are:
fundamental unit: it does not depend upon other unit. ex- length, mass, time, temperature etc. They are not formed from other units.
derived unit: it depends upon other physical quantities. ex- m2(square)or sq.m.It is formed from the combination of two.or more fundamental units
Answer:
wood is a renewable resource while steel is non-renewable
Explanation:
Based on the scenario being described within the question it can be said that the one of the supporting statements for wood would be that wood is a renewable resource while steel is non-renewable. Meaning that if mistakes or changes need to be made the same wood can be reused. Also at the end of the life-cycle of the house, when it is torn down the entirety of the wood used can be repurposed for another usage.
You can't explain behavior by merely focusing on internal characteristics of a person such as being sadistic and cruel. Such behaviors were not exactly predisposition. They were heavily influenced by external factors like commands from a legitimate power such as Adolf Hitler. The Milgram experiment was actually inspired by the harsh acts of Germans during the WWII. People can actually go to extreme lengths, even if such acts are an attack of one's personal conscience, since they believe the legitimacy of a higher power, consequently making their actions legal or morally right even when it is not.
