Digital devices, smartphones included, emit what we call the blue light. It has a wavelength between 380 to 470 nm. This is the only light that can penetrate the retina of the eyes. Hence, prolonged exposure to blue light, especially during at night, will cause damage to the retina resulting to sleep disorders or worst, cataracts.
Answer:
The written description of the complement of the given event is More than one of them test negative
Explanation:
The sentence states that seven people were tested and it also says that at least one tests positive, this means that the minimum number of positive results is one, which makes options A, B, and C incorrect in terms of probabilities and statistics, option A and C says that ALL of them are positive or negative respectively which can nos be supported by the expression "at least", then option B is a restatement of option A. Option D is the one that paraphrases the sentences correctly by saying that at least it was one even there could be more, but it does not assure that all.
Answer:
I could be wrong but wouldn't it be all of the sentences suggested?
Explanation:
Answer:change the words or the sentences and correct them how they suppost to be
Explanation:just change the sentences
