<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.
The hypothesis becomes a theory.
From being a suggested explanation (for an observable
phenomena), hypothesis develops into a scientific theory. Hypothesis that is tested or undergone
scientific methods and experimental research
move on to become a scientific theory. Scientific theories have consistent with
experimental results and must have predictive power.
Occasional forgetting of objects, dates and situations is normal for people and occurs for various reasons such as a situation of stress or extreme tiredness, this situation is temporary, so it is not repeated in time linearly.
On the other hand we see that Alzheimer's disease (AD), also called senile dementia of Alzheimer's type (DSTA) or simply Alzheimer's, is a neurodegenerative disease that manifests as cognitive impairment and behavioral disorders. Characterized in its typical form by a loss of immediate memory and other mental abilities (such as higher cognitive abilities), as nerve cells (neurons) die and different brain areas atrophy, this is an irreversible process .
