Which of the following is not an organo-chlorine
Endosulphan
Malathion
$DDT$
Aldrin
The infectious agents made up of $RNA$ only are
The pesticides most toxic to vertebrates are
‘Rotenone' is
Which weed has been eradicated by biological control
Drinking of mineral water with very low level of pesticides (about $0.02 ppm$) for long periods may