Answer:
Social media is a good way to stay in touch with friends and family who live far away. But if we focus more on the people online than those who are nearby physically, or if we allow our friends who are in close proximity to become online friends only, then we have a problem. We can maintain those online friendships, but we should never substitute them for real friendships with people with whom we can talk and do things in person. Some in-person relationships may be difficult.
Answer:
In the past couple of weeks nothing interesting has happened.
Is it informal letter or formal letter
Think of earth wire as "Earth" which is green in some places. In the same vein, the earth wire is the green one or green with a yellow stripe.
Great question.