What does it mean to stay true to your self and not be someone your not? 100 words plz

This means make your own decisions. Don't base every choice you make on what others think. Don't change your look, talk, body, etc., just be "cool". Staying true to yourself is to always keep your personality. Everyone is unique.  For example, a young girl has three friends, each friend has decided that they all are going to sneak makeup to school. The young girl, who doesn't like makeup, agrees but she really doesn't want to. This is an example of somebody changing herself for somebody else.

Another example, once again, a 13 year old girl likes wearing her hair in a pony tail, wearing jeans, and t-shirts. Her "friends" tell her that her clothes are ugly. This girl changes her look so she can fit in with her friends.

These are both examples of somebody changing themselves. They will become less confident with who they are and they will eventually become lost in themselves. This is why you want to stay who you are and be true to yourself!

not concrete, existing in thought or as an idea but not having a physical or concrete existence

the sentence that best describes the tone of the passage from the radio broadcast compared to the passage from the book is b. the radio broadcast has a more surprised tone.

consider the text evidence: in the passage from the book, the description is more matter-of-fact. it is simply describing the things resembling little grey snakes, but there is no urgency in the description. on the other hand, in the passage from the radio broadcast, there is definetely urgency (you can tell from the expression used, "good heavens", which clearly indicates surprise.)