BIOGEOGRAPHY NOTES:
➡️Introduction to Soil Genesis
➡️Soil Profile and Soil Horizon
➡️Soil Forming Processes    
➡️Factors Influencing Soil Formation
➡️Introduction to Soil Degradation
➡️Causes of Soil Degradation
➡️Soil Erosion
➡️Soil Conservation
➡️Dispersion and Distribution of Plants
➡️Dispersal and Distribution of Animals