. Daksha entered into a quarrel with some farmers who were spraying DDT in their field. Many
people gathered at the spot to see and enjoy the incident. The angry mob demanded that
Daksha should not interfere in the farmers’ job. Daksha tried to explain her point and finally
succeeded. The farmers gave up spraying DDT.
a) What did Daksha explain to the farmers?
b) What is Bio-magnification? Explain with an example. What values did she promote?
Answers
Explanation:
b) What is Bio-magnification? Explain with an example. What values did she promote?
Ans.
Biomagnification, also known as bioamplification or biological magnification, is any concentration of a toxin, such as pesticides, in the tissues of tolerant organisms at successively higher levels in a food chain.[1] This increase can occur as a result of:Persistence – where the substance cannot be broken down by environmental processesFood chain energetics – where the substance's concentration increases progressively as it moves up a food chain
tration increases progressively as it moves up a food chainLow or non-existent rate of internal degradation or excretion of the substance – mainly due to water-insolubility
Biological magnification often refers to the process whereby certain substances such as pesticides or heavy metals work their way into lakes, rivers and the ocean, and then move up the food chain in progressively greater concentrations as they are incorporated into the diet of aquatic organisms such as zooplankton, which in turn are eaten perhaps by fish, which then may be eaten by bigger fish, large birds, animals, or humans. The substances become increasingly concentrated in tissues or internal organs as they move up the chain.
Bioaccumulants are substances that increase in concentration in living organisms as they take in contaminated air, water, or food because the substances are very slowly metabolized or excreted.
although it's copied from Google but I am sure it will help you...
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Answer:
ddt
Explanation:
farmers should be aware while using pesticides