Earth's two fixed reference points are the: a. North and South ...

[jenna1]

Earth's two fixed reference points are the:
 a. North and South Poles.
  b. North Star and Southern Cross.
  c. Tropics of Capricorn and Cancer.
  d. all of these

Question 2

The process by which natural vegetation at a particular location undergoes a progressive sequence of different plant communities is called _______________.
 Fill in the blank(s) with correct word

[manuelcastillo]

Answer to Question 1

A

Answer to Question 2

succession

[jenna1]

Thanks for the timely response, appreciate it

[anyusername12131]

Gracias!