The prickly pear weed $(Opuntia) $ bacame a menace and it has been successfully controlled by

Consider the following statements $(A-D)$ about organic farming.

$(A)$ Utilizes genetically modified crops like Bt cotton

$(B)$ Uses only naturally produced inputs like compost

$(C)$ Does not use pesticides and urea

$(D)$ Produces vegetables rich in vitamins and minerals

Which of the above statements are correct ?

Genetic diversity in agricultural crops is threatened by

Which one among the following is likely to have the highest levels of $DDT $ deposition in its body

The chemical present in flit $(finit) $ is

Leghaemoglobin takes part in