It looks like alot but its really not thanks for the help! (1) Rachel Carson was an American author and biologist in the 1950s. (2) Carson's research and her books were extremely influential on the American people. (3) She wrote a book called Silent Spring. (4) This book has been credited with beginning the conservation movement. (5) It made many people aware of the problems caused by pesticides. (6) After this book, the environmental movement began, leading to the creation of the U. S. Environmental Protection Agency.

Which of the sentences above BEST adds sentence variety to the paragraph?