Please write down the detailed answer, thank you

Considering the information presented in the chapter as well as the lecture, provide your thoughts on the following conceptual questions. For each concept you are asked to explain, answer in approximately 1-2 sentences. Examples should be brief, approximately 4-5 sentences.

1/ Explain three major components- logic, control and abstraction- in a program with an example.

2/ Why do web-based languages use just-in-time compilation? Explain.