Answer:
Application for the post of a Biology prefect.
I hereby apply for the post of a prefect in the school because I am explicitly good at Biology and also good in experimenting with living things. I love nature and also inquire to solve difficult task. I will be grateful if my request is favourably considered
The skills you need to improve as a student is memorization, not being afraid to ask for help or raise your hand. Having your own study space. Studying everyday.
The answer would be leave
This part of the thesis would be considered the topic, more specifically it would be considered the <em>introduction of the topic to study</em> since the thesis revolves around, I assume, Isaac Newton and you are offering a brief 'summary' of his life and accomplishments.
However if the reason to mention Sir Isaac Newton is to support an idea or a statement this could be considered a subtopic. It is subjective and directly related to the field of study you're doing the thesis for.
Hope this helps!