<u>Answer</u>:
Cell phones contain rechargeable batteries that transform chemical energy into electrical energy. When using your cell phone, electrical energy is first transformed into <u>Electromagnetic waves </u>that are transmitted through the air.
<u>Explanation</u>:
When chemical energy is converted into electrical energy in cell phones, then this electrical energy firstly transformed or converted into electromagnetic waves which travels through air. Then this electromagnetic wave is converted into sound energy due to which users are able to listen audio, music, movies etc on their mobile phones.
The electrochemical energy that stored in a cell is removed as electrical energy in the process of discharging. There are so many other thermal and electrochemical processes taking place at the same time.
Answer: Cohort Analysis report
Explanation:
Cohort is defined as the collection of people who persist related or common characteristic. Cohort analysis report is the record that is made from the cohort behavior over certain period of time.
Analysis and comparison of different behavior is done in this report to determine the state of performance i.e.-high performance,low performance or moderate performance. Analytic dimensions are used in this record making such as Acquisition date etc.
Answer:b) naturalistic observation
Explanation:
Naturalistic observation is a technique under which observation of the subject is done in its natural environment.
Usually this technique is used when lab research will be unreasonable.
How Does Naturalistic Observation Work?
This technique may be used just because people's responses may be more effective when they are in their comfortable environment than when they are in a lab for research purposes.
Sometimes the result of the research are more effective when the behaviour is observed in an exactly moment when it happens. By watching how people respond to certain situations and stimuli in real-life, psychologists can get a better idea of how and why people react.
Answer: The notion that expansion through military conquest would solve Japan's economic problems gained currency during the Great Depression of the 1930s. It was argued that the rapid growth of Japan's population—which stood at close to 65 million in 1930—necessitated large food imports.
Explanation:
I’m pretty sure it is C :))
