Factors tree please
6,9. 12,8
5,15. 4,6
21,9. 14,21.
18,24. 15,6
4,2
4,18
12.8
Physical are like rivers, lakes , oceans and mountains
And human made /cultural features are like dams, buildings , canals stuff that aren't naturally here
Gamma rays, x-rays, ultraviolet, infrared, microwaves, radio waves
Answer:
more than 100000
Explanation:
I guess so cause In each plant there should be 1000 so if we calculate the whole and each states continents it should maybe be 10000 I am not sure about it I just guessed it
