How the mentioned problems can be solved

The government should improve on the roads by grading, Surfacing, and tarmacking.
 
Land consolidation should be emphasized. This is where the people can surrender their small pieces of land for the sake of making them large enough for cultivation
 
Re-afforestation, afforestation, terracing, contour ploughing should be done to control soil erosion.
 
Encourage migration and re-settlement of the people to sparsely populated areas.
 
Use of pesticides and insecticides to control crop pests.
 
Emphasize family planning to control population.
 
Encourage self-employment in order to reduce idlers and crime causers.
 
Introduce strict laws on tree felling to ensure environmental conservation.
 
Look after the animals of high quality but from indoors.
 
Grow high value and yielding crops.