Answer:
The researchers discovered a negative relationship between mobile phone usage and students' academic performance, such that every 100 minutes that a student spent using their phone a day lead to the student dropping 6.3 places in terms of their academic school ranking.
Answer:
A). Invisible ink isn’t really invisible at all.
Explanation:
The chief idea which the author aims to convey through the given passage would be that '<u>invisible ink is not actually invisible</u>.' This claim is substantiated through the descriptions asserting the type of inks(lemon juice, brown ink) that have been used to write such invisible content and also regarding how this invisible content can be visible(by holding the paper over candle's flame or using a chemical). This shows that the ink is not actually concealed completely. Thus, <u>option A</u> is the correct answer.
Answer:
"People who move to a new city don't always have it easy. They go through much tribulation as they try to set up a new home and make new friends in a place unknown to them."
Explanation:
The gap in these lines according to the correct use of part of speech should be cover with a noun, from the given options the only noun that we have is tribulation which fits perfectly in the space not only because of its functions but also because of its meaning conveying the clear message that people have to face some conflicts and difficulties during the process. The other three given options are adjectives that can't be used in that position.
The answer to ur question is B. Age and gender because they are a demographic characteristics
