Primary succession occurs when vegetation occurs in a place for the very first time, i.e there was no vegetation there before.
The causes are:
-Erosion
-Physiography
-Elevation
Answer:
What are the options? If I had to guess NaOH+H2 Na+H2O
Explanation:
because the doctor might not have studied her enough to diagnosed her
A. Community.
This is because a community contains living this, and biotic means living.