class 10 ncert
A farmer is using an insecticide to protect his cereal crop from attack of insects. This crop serves as food in the following two food chains:
cereal crop -- man
cereal crop -- hen -- man
question1 :
if some insecticide is absorbed by the crop and is eaten by man along with his food , will man be affected equally in both cases? if no, in which case will he be affected more also name that and define the phenomenon involved.
question 2 :
if the crop field produce same amount of cereof in both the cases, would man get equal amount of energy in each case? justify your answer.
Answers
Answer:
q 2 - yes
Explanation:
Pl mark me as brainliest
Answer:
Explanation:
question 1
Key facts
Pesticides are used to protect crops against insects, weeds, fungi and other pests.
Pesticides are potentially toxic to humans and can have both acute and chronic health effects, depending on the quantity and ways in which a person is exposed.
Some of the older, cheaper pesticides can remain for years in soil and water. These chemicals have been banned from agricultural use in developed countries, but they are still used in many developing countries.
People who face the greatest health risks from exposure to pesticides are those who come into contact with them at work, in their home or garden.
Pesticides play a significant role in food production. They protect or increase yields and the number of times per year a crop can be grown on the same land. This is particularly important in countries that face food shortages.
To protect food consumers from adverse effects of pesticides, WHO reviews evidence and develops internationally-accepted maximum residue limits.
question 2