Question

which sanitation practices can reduce air and soil pollution

Answer 1

By using paper or cloth bags instead of using plastic bags
By using compost pits
By reducing the use of harmful pesticides and insectides
By recycling the wastes
By eliminating the open defacation

Answer 2

We can reduce air and soil pollution with sanitation practices like 
1. Reusing and Recycling Plastic bag and preventing them mixing in the soil.
2. Do not dump harmful things or non biodegradable wastes in the soil.
3. Recycling old broken glass, metals instead of throwing them away.
4. By using composting and producing  manure and increase the quality of soil and not using harmful chemical fertilizers.
5. By constructing bio gas plants.
6. We should use paper , cloth,  or jute bags while going for shoping instead of plastic bags.