What is the difference between "focus on" and "focus in". which one is correct regarding grammar?

Answer by YourHope:

Hi! :)

The difference between "focus on" and "focus in" is that focus on literally means to focus on something. You are putting all your attention on a specific thing, while focus in is incorrect.

:)

life is

(i can't select because there is no options but, i will answer) using evidence effectively. most of the assignments you will do in university will ask you to make an argument, to take a stance, or to prove a hypothesis. the best way to do this is to research the topic, develop a thesis statement, hypothesis, or claim and then use evidence to support this claim.