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( d ) all the three above

When returning to the earth, spacecraft has a communication blackout. The reason is: (A) The returning spacecraft is doing so against the force of gravity, which inter-feres with the radio waves (B) During the re-entry period, the density of the plasma, generated by the intense frictional heat, is so high that the operational frequencies used for communication be come very much less than the plasma cut-off frequency, resulting in a total blackout (C) Stellar X-rays attract and absorb the sound waves (D) None of the above

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Neap Tides occur: (a) at half moon (b) during the day (c) once a month (d) twice a week

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In increasing sequence, the major elements present in the human body are (a) Calcium, iron, sodium, phosphorus (b) Calcium, phosphorus, potassium, sulphur (c) Calcium, iron, sodium, sulphur (d) Calcium, potassium, phosphorus, iron

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In some parts of the country Ball Gard (Bt) cotton, which is a G M crop, is being cultivated by the farmers. What is the full form of G M cotton? 1 Green Mechanised Cotton 2 Gruadually Moisturised Cotton 3 Genetically Modified Cotton 4 None of these

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. Which one of the following is the most important reason for the establishment of the Vikram Sarabhai Space Centre at Thumba? (a) The sea is near to the place in the East, West and South directions (b) It is a place near to a city in India, which is nearest to the Geographic Equator (c) It is situated on the Geomagnetic Equator (d) Outer Space near Thumba exhibits queer atmospheric phenomena

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The increase in the world population has been accompanied by a major shift in its distribution. The share of the developed countries in the world population is approximately. (1) 15% (2) 20% (3) 25% (4) 33% (5) 38%

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Which of the following states does not have any atomic power plant? (a) Tamil Nadu (b) UP (c) Orissa (d) Rajasthan

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The hymns of Rig Veda are the work of: (a) One author (b) Four authors (c) seven authors (d) many authors

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Which one of the following was the founder of the Advaita system of philosophy? (a) Ramanuja (b) Ramanand (c) Kumaril Bhatt (d) Shankaracharya

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Whom did Justin Henin-Hardenne defeat in the finals of the French Open 2003 to win the title? 1 Serena Williams? 2 Venus Williams 3 Jennifer Capriati 4 Kim Clijsters

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For condensation, besides temperature, another factor is necessary, what is that? (a) Condensation nuclei (b) Dew point (c) Saturation point

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Which of the following is known as ‘graveyard of RBCs’ ? a) Liver b) Bone marrow c) Spleen d) Appendix

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