Your mother always thought that fruit juices are very healthy for everyone. One day she read in the newspaper that some brands of fruit juices in the market have been found to contain certain level of pesticides in them. She got worried as pesticides are injurious to our health.
(a) How would you explain to your mother about fruit juices getting contaminated with pesticides?
(b) It is said that when these harmful pesticides enter our body as well as in the bodies of other organisms they get accumulated and beyond a limit cause harm and damage to our organs. Name the phenomenon and write about it.
Answers
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(a) The Pesticides are Commonly used to kill the Pests in Crop Fields . However These Particles contain several Non-Biodegradable Chemicals , that can Stick To the surface of the Fruits , Vegetable and other Plant parts .If these Fruits are not washed properly before use , these chemicals remain attached to them and thus can contained fruit Juices.
(b) Some of pesticides used to protect crop from pests and diseases are washed away into soil, while some enter into water bodies. From soil they are absorbed by plants along with water and minerals .from water bodies taken by aquatic plants and animals. This is how chemicals enter food chain. Because these chemicals can't decompose they accumulate at each trophic level. As food chain precedes concentration of pesticides increase. This increase in concentration is called biological magnification.
The Pesticides are Commonly used to kill the Pests in Crop Fields .These Particles contain several Non-Biodegradable Chemicals , that can Stick To the surface of the Fruits , Vegetable and other Plant parts .
(b) Some of pesticides used to protect crop from pests and diseases are washed away into soil, while some enter into water bodies. From soil they are absorbed by plants along with water and minerals .from water bodies taken by aquatic plants and animals. This is how chemicals enter food chain. Because these chemicals can't decompose they accumulate at each trophic level. As food chain precedes concentration of pesticides increase. This increase in concentration is called biological magnification.
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