Answer: It began when Ronald Regan invented it
Explanation:
Answer:
case study
Explanation:
<u>Case study is a research methodology in science especially in social science. It is an in-depth intensive and systematic investigation of a case i.e. a person, a group, a community, or a unit</u>. It help researchers to describe the complexity of a phenomenon in a natural setting.
Answer:
The ocean was first mapped by Abraham Ortelius; he called it Maris Pacifici following Ferdinand Magellan's description of it as "a pacific sea" during his circumnavigation from 1519 to 1522. To Magellan, it seemed much more calm (pacific) than the Atlantic.
Explanation:
The native people because they are better and og
The instrument is called the Oscilloscope.