Q. Which one of the following geophysical methods uses the physical property ‘Dielectric Constant’? (A) Gravity                                                   (B) Ground Penetrating Radar (C) ...

Q. The geometrical factor for the following electrode configuration is (A) 𝜋𝑎                       (B) 2𝜋𝑎                      (C) 3𝜋𝑎                      (D) 4𝜋𝑎 Ans: 4𝜋𝑎

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.

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 ...

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 ...

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

Q. If the mean of a sample is 5, and the variance is 25, the PERCENT coefficient of variation is . Ans: 99-101

Q. El Niño Southern Oscillation (ENSO) events have occurred approximately every 3-7 years over the last century. The cause of these ENSO events is related to A. large-scale air-sea interactions in the Pacific Ocean B. strong monsoon winds in the Indian Ocean C. the melting of icebergs in ...

Q. Which of the following is NOT essential for a behavioural trait to evolve by natural selection? A. The behavioural trait differs among individuals B. The behavioural trait is determined at least in part by genes C. The behavioural trait influences reproductive success D. The ...

Q. A scientist finds a new species of insect and sends a sample to a museum for confirmation. The curator of the museum designates it as a holotype for the newly identified species and asks the scientist to also provide samples of the opposite sex. This sample of the opposite sex is called the ...

Q. Which of the following is NOT a characteristic of r-selected species? A. Early sexual maturity B. High juvenile mortality C. High parental care D. Large number of offspring Ans: High parental care