The first option of "friction and air resistance being the reason for him to slow down
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Answer:These stages are as: (1) "collection of a sample of learner language, (2) identification of errors, (3) description of errors, and (4) explanation of errors".
Explanation:
In lines 140-150, what hasn't changed is that the father still switches off the electricity generator at 10 p.m. and goes to sleep in his study. The expression "as was custom" marks that this has not changed.
The language that shows that the father is changing can be found in lines 141, 173 and 175-176:
In line 141 we learn that he does not use certain rooms ("rooms we'd stopped using").
In line 173 we read that the father "seemed lighter" and chatted with his son.
In lines 175-176 the father says that "now he might be able to come to the end-of-the-year recital" at his child's school.
I think you should start it out like this:
The (virus) has shifted the way the world works. It has caused cities to go on lockdown, shops and stores to close, and many other issues.
Then add:
It also raises a question, does this virus have a negative impact on people's mental health?
or
With research, I have come to the conclusion that (virus) is damaging the mental health of people worldwide.
You can approach it by saying the question and then answering it, or you can say your claim and provide evidence and reasoning.
Hope this helped!