Correct option is D
Gaseous exchange in soil occurs mainly through diffusion due to concentration gradients. Oxygen enters the soil while CO₂ is released, supporting aerobic microbial activity and root respiration.
All Courses
- SSC CGL
- SSC CHSL
- SSC Maha Pack
- DSSSB
- SSC Stenographer
- Skill Development Courses
- SSC GD
- SSC MTS
- SSC Selection Post
- SSC CPO
- Delhi Police
- UP Police
- 11 Million GiveAway
- Railways Group D
- RRB NTPC
- KVS Non Teaching
- EMRS Non Teaching
- SSC Free Classes
- DDA EXAMS
- NVS Non Teaching
- SSC Exams Books Kit
- AFCAT
- SSC Exams 2026-27
- Delhi High Court
- DRDO Technician
- JKSSB
- Intelligence Bureau
- RPF
- SSC Books
- BSSC Inter Level
- SSC Offline Exam
- CBSE
- MP Police
- SSC JHT
- UPSSSC
- UP Police Constable
- CDS
- IB ACIO
- UPSSSC PET
- BSF
- RRB JE
- Bombay High Court
- UP Home Guard
- NCERT LDC
English
20 Questions
80 Marks
24 Mins
