Doctor or teacher or an engineer
Answer:
Survey data are collected by using all of these methods except Field Research.
Explanation:
In field research data has been gathered from different experiments, qualitative analysis and observations of any event.
On the other hand, survey data can be collected from Following:
<u>structured interview</u><u>:</u>
where data can be gathered by interviews and analyzed it on quantitative basis.
<u>Face to face questionnaires:</u>
Data has been collected by asking questions directly from users in the form of interview.
<u>self-administered questionnaires</u>
In this research, questionnaire has been designed to asked question related to some topic without conducting interview.
Mobile phones transmit and receive signals using electromagnetic waves, that is, wireless signal are electromagnetic waves which can travel through a vacuum, they do not need a medium or matter.
<h3>What are electromagnetic waves?</h3>
They are generated by electrical and magnetic particles moving at the same time (oscillating).
<h3>Characteristics of electromagnetic waves</h3>
- Network waves are electromagnetic waves.
- A mobile phone has coverage when it receives electromagnetic waves from at least one base station.
- They do not necessarily require a material medium for their propagation.
Therefore, we can conclude that electromagnetic waves are those that do not need a material medium to propagate and include, among others, radio, television and telephone waves.
Learn more about electromagnetic waves here: brainly.com/question/13803241
Answer:
belongs to everyone.
Explanation:
A National Archive can be defined as the collection of data (informations) and documents by the government of a particular country for record keeping purposes.
Basically, these documents comprises of information about important and historical events that have happened in the country or events generally related with the country.
Hence, the National Archives is part of the federal government, which means that its content belongs to everyone. This is simply because the federal government is a government of the people, for the people and by the people. Thus, the ownership of governmental institutions or agencies belongs to the general public i.e the citizens of the country.
