Q. A melanocratic porphyritic rock containing phenocrysts of biotite, with feldspar restricted to the groundmass, is called (A) trachyte. (B) dacite. (C) andesite. (D) lamprophyre. Ans: lamprophyre.
Q. The geomorphic feature ‘horns’ are formed by (A) wind erosion. (B) river erosion. (C) wind deposition. (D) glacial erosion. Ans: glacial erosion.
Q. Pascal second is a unit of (A) seepage force. (B) dynamic viscosity. (C) kinematic viscosity. (D) permeability. Ans: kinematic viscosity.
Q. Which one of the following geophysical methods uses the physical property ‘Dielectric Constant’? (A) Gravity (B) Ground Penetrating Radar (C) Seismic (D) Self-Potential Ans: Ground Penetrating Radar
Q. The geometrical factor for the following electrode configuration is (A) 𝜋𝑎 (B) 2𝜋𝑎 (C) 3𝜋𝑎 (D) 4𝜋𝑎 Ans: 4𝜋𝑎
The geometrical factor for the following electrode configuration is Read More »
Q. The speed of revolution of the Earth around the Sun is A. maximum at Perihelion. B. minimum at Perihelion. C. maximum at Aphelion. D. equal at Aphelion and Perihelion. Ans: maximum at Perihelion.
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Q. The latitudinal diversity gradient is defined as the decrease in the number of species from the equator to the poles. This can result from A. greater energy input at the poles B. greater land mass at the poles C. greater seasonal variation at the poles D. greater speciation rates at the poles Ans: greater
Q. Which of the following is an adaptation for osmoregulation in freshwater teleost fish? A. Excreting large quantities of dilute urine B. Excreting large quantities of uric acid C. Having high concentration of blood urea D. Excreting large quantities of uracil Ans: Excreting large quantities of dilute urine
Which of the following is an adaptation for osmoregulation in freshwater teleost fish? Read More »
Q. In a food chain, the efficiency of transfer of energy from one trophic level to the next is 10%. The PERCENTAGE of energy that is expected to transfer from the second to the fourth level is . Ans: 0.99-1.01
Q. Consider a diploid population at Hardy-Weinberg equilibrium. For a locus with two alleles, the frequency of the A1A1 genotype is 0.01. The frequency of heterozygotes A1A2 is (answer up to 2 decimal places). Ans: 0.179-0.181
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