A. The predator develops a preference to other diets and may itself become a pest
B. They do not always survive when transferred to a new environment
C. The method is less effective as compared to the use of insecticides
D. The practical difficulty in introducing the predator to specific area
Forestry Mcqs
Forestry Mcqs for Preparation of Fpsc, Nts, Kppsc, Ppsc, and other test.
A. Place of occurrence
B. Competitive ability
C. Centre of origin
D. Function at its place of occurrence
A. 1%
B. 2%
C. 10%
D. 20%
A. Biological nitrogen fixation
B. Electrification of nitrogen
C. Industries
D. All the above
A. Herbivores will not receive solar energy
B. Rate of decomposition of other component will be very high
C. Mineral movement will be blocked
D. Energy flow will be blocked
A. Lime rocks contribute to CO2 of water
B. Atmospheric CO2 gets dissolved in water
C. CO2 is returned by combustion of fuel
D. 75% of total carbon lies in geological component
A. FeS and Fe2S3
B. Organic sulphates and -SH
C. Soluble inorganic sulphates
D. All of these
A. Grasslands
B. Forests
C. Planktons
D. Epiphytes
A. 9 x 1013 kg
B. 8 x 1012 kg
C. 9 x 1011 kg
D. 8 x 1010 kg
A. 150
B. 1,500
C. 300
D. 3,000
