A. Eel
B. Crab
C. Sea gull
D. Phytoplanktons
Related Mcqs:
- The use DDT is banned now a days because it is:
A. Very costly
B. Not available
C. Inflammable
D. Not degraded easily - Spraying of DDT on crops produces pollution of
A. Soil and water
B. Air and soil
C. Crops and air
D. Air and water - 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 - 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 - DDT is a:
A. Biodegradable pollutant
B. Green house gas
C. Non-degradable pollutant
D. None of the above - Spraying of DDT on crop produces pollution of:
A. Air only
B. Air and soil only
C. Air, soil and water
D. Air and water only - The maximum biological magnification of DDT through food web is seen in:
A. Algae
B. Bacteria
C. Higher plants
D. Man - Thermal insulation, leading to greater deposition of dew. In addition organic mulches also contribute to:
A. Enhanced humification and microbial activity leading to higher nutrient availability
B. Improvement of soil structure, by incorporation of plant residues and by encouraging soil fauna.
C. Mulching is of profound importance in dry regions
D. Even in more humid climates it may have very beneficial effects with certain species, e.g., the poplar
E. All of the above - If bamboo plant is growing in a far forest then what will be its trophic level?
A. First
B. Second
C. Third
D. Fourth - Every pesticide develops its own failure as its repeated use leads to:
A. The development of resistant pest varieties
B. Simplification of food web
C. Reduction in population of useful birds
D. Increase in weed population
The correct answer to the question: "Which of the following is likely to have the highest level of DDT deposition in its body?" is "Sea gull ".
