My country soil.

My country soil is the best soil. Science will read the third chapter of the soil chapter and you will know what you need to know to live a healthy and strong life. • Learn how to dispose of daily household waste. The fertility of the soil, you will know what happens as a result. পারবে Be able to talk about what causes contamination. Be able to talk about preventing soil pollution. | The essence of the chapter is that soil is one of the most important resources in the world. Almost all animals, including humans, depend on plants for food. This plant grows in the soil. Again we want pollution free fertile soil for good food production. The more fertile the soil, the more fertile it is. The soil which lacks essential nutrients is called infertile soil. The use of fertilizers in such soils increases the fertility of the soil. The soil is polluted due to various human activities. Household waste and feces - urine, hats - markets, industries - factories, hospitals, etc., are dumped in the soil every day, much of which the soil can not clean. Excessive use of inorganic fertilizers, pesticides and herbicides in agriculture is a major cause of soil pollution. .