Nerve gases (also known as nerve agents) are a class of chemical weapons. During Day 5, the terrorist group known as the Dawn Brigade (led by Vladimir Bierko) used a stolen nerve gas called Sentox to threaten America.
the number of words in a novel will vary depending on the genre a young adult novel will run between 20000 and 40000 words that would be the length of a novella in mainstream fiction many genres seem to have succumbed to supersizing a mass market western mystery or sf novel used to run to 60000 70000 words
Novels for adults average around 100,000 words, and tend to have 250-350 words per page. Fantasy and science fiction can be a bit longer (or a lot longer, in some cases). I'm writing a book myself, I think a good average length for most book can range between 10,000 to 100,000 words.