The danish astronomer olaus roemer made careful measurements of the period of a moon about the planet jupiter. how this data enabled a calculation of?

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

What is the pattern of urbanisation around the word?

What factors contribute to american farming success?