How many of the world's 20 largest cities are located in Western Europe?
none
one
two
D. four

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

Soil is made of air water organic material minerals weathered rock

What is the hottest planet in the solar system?