Home
Search
Create
Library
Topics
Student
Teacher
Admin
Map
Sign in for more features
YourStory
Home
Search
Create
Library
Topics
Student
Teacher
Sign in
Feedback
Contact Us!
Assessment
What is the primary role of earthworms in soil health?
Soil aeration and nutrient cycling
Pest control
Water retention
Seed dispersal
How do earthworms contribute to nutrient cycling in soil?
By excreting nutrient-rich castings
By consuming all soil nutrients
By blocking water movement
By leaving the soil untouched
What effect does soil aeration by earthworms have on plant roots?
It restricts root growth
It enhances root penetration and growth
It causes roots to decay faster
It leads to waterlogging
Submit