State five reasons behind compaction of soil.

Hi Mahmoud, I am not expert in this area. Sorry for not able to answer your question

1. Decrease  settlement
2. Increase resistance to shear stresses and erosion
3. Decrease swelling and shrinkage of soil when exposed to water
4. Increase soil resistance against seepage of water and absorption of water by capillarity rise
5. Increase density of soil

I don't know because I am system analyst

Thank you for the invitation but the subject is not within my expertise