Describe the transportation system of this country

Which factors add to the greenhouse effect and are caused by human activities?

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

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