5th Class Science Environmental Issues Soil Pollution

   Soil Pollution

Excessive, unorganized agriculture and no judicious use of chemical fertilizers, pesticides, weedicides, herbicides and insecticides etc contaminate the soil which is called soil pollution. Polluted soil leads to the growth of polluted plants and this toxicity finally enters the human/ animal's body through food chain.

           Causes of Soil Pollution

           Consequences of Soil Pollution

           Polluted Soil Causes Disease  

        How can we maintain the quality of soil?

Look at the following chart to understand the method by which, we can maintain the quality of soil  

Cow dung adds organic matter to the soil to enrich soil fertility  

Crop rotation – growing leguminous plants alternatively with cereals to maintain nutrients deficiency in the soil naturally

       Find the statement which is true about soil pollution?

(a) Brain and nerve can be damaged due to soil pollution

(b) Malaria is caused by the protozoa that live in soil

(c) Metals, pesticides, solvents, lead and oil spills are soil contaminants

(d) Deforestation leads to soil pollution

(e) All of these

Answer: (e)

Explanation 

Soil pollution causes many diseases. Hence, all the statements in the options are true. Therefore, option (e) is correct and rest of the options is incorrect.

       Consider the following statements:

Statement 1: Climate of a region is affected due to soil pollution.

Statement 2: Climate of a region is not affected due to soil pollution.

Which one of the following is correct about the above statements?

(a) Statement 1 is true and 2 is false       

(b) Statement 1 is false and 2 is true

(c) Both statements are true                     

(d) Both statements are false

(e) None of these

Answer; (a)

 Explanation

Soil pollution affects vegetation which in turn affects climate. Therefore, option (a) is correct and rest of the options is incorrect..