Answer: Primary succession occurs after a volcanic eruption or earthquake; it involves the breakdown of rocks by lichens to create new, nutrient -rich soils. The first species to colonize an area after a major disturbance are called pioneer species; they help to form the new environment.
Explanation:you welcome
Answer: left handedness
Explanation:
It would be the opposite of RR
1. Division 2
2. Division 2
I dont know how to explain the other ones.