Answer:
It will be the 2nd option.
Explanation:
It's not clear where the paragraph break is between one and two, but I might be able to help you. The last option is incorrect, because all of the text relates which is why it's hard to determine where the paragraph break might be. Paragraph one does not offer a solution as it isn't until the end we know the cause of the dark day. While both paragraphs have at least one fact, paragraph one seemingly is full of guesses as to the cause of the dark day. This leaves the only correct option as the first one. The researchers decided to investigate the cause of the dark day, and then the results are reported.
Answer:
A letter to my friend's aunt.
Explanation:
B-56,
Ambala
Punjab,
05.05.2020
Dear Aunt,
I hope this letter finds you in the best of health. Through this letter, I wanted to ask you for a part-time job. Last year I came to meet you with Rohan (my friend). After our meeting, Rohan told me that you provide some part-time job to the college students. I am also a student at Ambala University and looking for some part-time job as well as a stay for my vacation. I have experience in cooking so during the busy summer season I can help you cooking breakfast. You can give me a suitable remuneration in return to my help.
Hope to see and join you soon.
Regards
Rahul