Yes! 8. When it is young, it is hard to see, but as the biological s o i l crust develops, it looks like a dark, bumpy mat on top of the sand.
Please go to Question 9. |
Last updated: February 24, 2015
Yes! 8. When it is young, it is hard to see, but as the biological s o i l crust develops, it looks like a dark, bumpy mat on top of the sand.
Please go to Question 9. |
Last updated: February 24, 2015