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although banned in most industrialize countries since the early 1970 ‘DDT’ is still used in many tropical countries for agriculture purpose and to control insect vectors of humans disease in soil however concentation in air and water and to a lesser degree in soil . however concentration is much larger in organism especially in animals at a top of their food chain such as humans and predatory buds ​1. mention the term used to describe the above phenomenon ​​2. suggest two alternative method to reduce two phenomenon 3. mention two values that should be inbided the people to adopt the alternative methods

although banned in most industrialize countries since the early 1970 ‘DDT’ is still used in many tropical countries for agriculture purpose and to control insect vectors of humans disease in soil however concentation in air and water and to a lesser degree in soil . however concentration is much larger in organism especially in animals at a top of their food chain such as humans and predatory buds
​1. mention the term used to describe the above phenomenon
 ​​2. suggest two alternative method to reduce two phenomenon
3. mention two values that should be inbided the people to adopt the alternative methods

Grade:10

1 Answers

Dr.Adam Shaik
askIITians Faculty 387 Points
4 years ago
Hi Nandini soni,
Nice question to answer.
In your paragraph the drug is spreading from one tropic level to other through food chain.
So we call it as BIo magnification (spreading/Increasing its area of availability).
Ans1:Bio magnification
Ans2:Organic manure usage;Organic farming;Biological control
Ans3:Non chemical pesticides and herbicides usage is the best method to control Bioagnification.
Biological control: usage of prey and predator relation in stopping the worms and the vectors.
go through the below images for more information519-917_slide_17.jpg519-635_image3.jpeg

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