Crack this riddle! I speak without a mouth and hear without ears. I have no body, but I come alive with wind. What am I?

A echo Pls lpsl plsp lsp lpsl psl

depends on your school

when i was in high school i took ap biology my senior year and it was the hardest one for me because my teacher finished the material within the first month of school and then went on to doing advanced college level it was horrible. but at a nearby school ap biology was one of the easier aps. also, it depends on what you are interested i like math a lot so ap calculus was easier for me than most but i hate history so ap us government was harder for me than most.

there are not supposed to be quotations (¨ ¨) from an mla citation in a paper. if there was an author then the author´s last name should be in the parentheses instead. if it is a book, the page numbers hould be listed after the last name.

let´s use the book ¨to kill a mockingbird¨ by harper lee as an example:

"atticus finch is the same in his house as he is on the public streets¨ (lee 46).

hope this !