1. List several parts to a book and what material is used for that part. 2. How much raw material do humans use each year? (give examples)

What are chlorofluorocarbons made of

Which of the following is one of the four conditions necessary for natural selection to occur in a population? fewer organisms are born than the habitat can support mutation does not occur organisms have identical characteristics variation is inherited

What is thought to have caused the mass extinction at the end of the cretaceous period?