Im confused on what im doing in there but its in chapter 12 lesson 2 ags general science book

The primary agent of contact metamorphism is

Why is immigration so important today?

The declining axolotl population in mexico city is an example of in overcrowded cities. a. the surpassing of support capacity b. changes to natural environments and native species c. the lack of safe homes and tenured spaces d. the effects of a growing urban heat island