Run the answer brainless will be given for good answers

1 =  I would describe the subject of this magazine as things that relate to discoveries ( I'm not fully sure but go for it because I think I am right)
2 = 44
3 = In Book Reviews (On page 128)
4 = Write this: I think that this magazine was published for some time because on the top left corner of the magazine it says " December Issue" which shows that it was published in December
5 = Letters to the editor

Adjective clauses  begin with words such as that, when, where, who, whom, whose, which, and why. an essential (or restrictive)  adjective clauseprovides information that is necessary for identifying the word it modifies. so for example*** wrong= i the man gave me direction. example right ( i the man who gave me the  direction.