Q. A place was rocky and barren but now there is a green forest, the sequence of origin is
A) Lichen, moss, herbs, shrubs
B) Moss, lichen, herbs, shrubs
C) Lichen, moss, shrubs, herbs
D) Shrubs, herbs, moss, lichen
Explanation
The rocky and barren place is deficient in water and lacks any organic matter, having only minerals in disintegrated or weathered state, the pioneer to colonies this primitive substration are crustose types of lichen. Crustose lichens→ Foliose lichens → Moss→ Herbs → Shrub → tree.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.