Every pesticide develops its own failure as its repeated use leads to:

Related Mcqs:

1. Realising the need for a better management policy for wildlife, a high powered Wildlife, a high powered Wildlife Enquiry Committee, constituted by the Government of Pakistan presented their (draft) report in 1970, following which all the provinces and administrative unit promulgated their own Wildlife Act within administrative units promulgated their own Wildlife Act within a span of two years _______

   A. 1974 and 1975
   B. 1975 and 1976
   C. 1976 and 1977
   D. None of these

2. Biological control component is central to advanced agriculture production. Which of the following is used as a third generation pesticide?

   A. Pathogens
   B. Pheromones
   C. Insect repellant
   D. Insect hormone analogue

3. The major drawback of DDT as a pesticide is that:

   A. Its cost of production is high
   B. It is not rapidly degraded in nature
   C. Organisms at once developed resistance to it
   D. It is significantly less effective than other pesticides

4. The most harmful pesticide is:

   A. PAN
   B. 2,4,5-T
   C. 2,4-D
   D. DDT

5. Which of the following is not a commonly used pesticide?

   A. Aldrin
   B. Lindane
   C. Chlordane
   D. Chloremphenicol

6. When DDT was applied in an orchard as a pesticide, the fruit production decreased. This happened because:

   A. DDT is a growth retardant
   B. DDT disturbed hormonal balance essential for fruit setting
   C. DDT killed the pollinating insects along with the pests
   D. DDT inhibited flowering

7. The transfer of food energy from the source in plants through a series of organism with repeated stages of eating and being eaten is known as:

   A. Food web
   B. Food chain
   C. Food cycle
   D. None of these

8. The transfer of food energy from the sources in plants through a series of organisms with repeated stages of eating and being eaten is known as:

   A. Food way
   B. Food web
   C. Food link
   D. Food chain

9. An anatomical features, which exclusively develops to counter high velocity of wind:

   A. Reaction wood formation
   B. Absence of secondary growth
   C. Absence of tylosis
   D. All of these

10. The linkage of humans and animals and the importance of wildlife in the past _____ years has been brought to limelight largely because we have leart that their existence is inextricably tied to our own:

    A. 50
    B. 100
    C. 150
    D. 200