Q: 38 (SCRA/2013)

In hill areas soil erosion can be minimi zed by which of the following methods ?
1. Terracing
2. Contour ploughing
3. Strip farming
4. Planting perennial species
Select the correct answer using the code given below :
question_subject: 
Geography
question_year: 
2013
question_exam: 
SCRA
stats: 
0,592,392,264,0,128,592