UPSC PRELIMS GS PAPER-1 2018

With reference to the Indian Regional Navigation Satellite System (IRNSS), consider the following statements: 1) IRNSS has three satellites in geostationary and four satellites in geosynchronous orbits. 2) IRNSS covers entire India and about 5500 sq. km beyond its borders. 3) India will have its own satellite navigation system with full global coverage by the middle of 2021. Which of the statements given above is/are correct?

Consider the following phenomena: 1) Light is affected by gravity. 2) The Universe is constantly expanding. 3) Matter warps its surrounding space-time. Which of the above is/are the prediction/predictions of Albert Einstein's General Theory of Relativity, often discussed in media?

With reference to the Genetically Modified mustard (GM mustard) developed in India, consider the following statements: 1) GM mustard has the genes of a soil bacterium that give the plant the property of pest-resistance to a wide variety of pests. 2) GM mustard has the genes that allow the plant cross-pollination and hybridization. 3) GM mustard has been developed jointly by the IARI and Punjab Agricultural University. Which of the statements given above is/are correct?

Consider the following pairs: Which of the pairs given above is/are correctly matched?

Which of the following statements best describes "carbon fertilization"?

When the alarm of your smartphone rings in the morning, you wake up and tap it to stop the alarm which causes your geyser to be switched on automatically. The smart minor in your bathroom shows the day's weather and also indicates the level of water in your overhead tank. After you take some groceries from your refrigerator for making breakfast, it recognises the shortage of stock in it and places an order for the supply of fresh grocery items. When you step out of your house and lock the door, all lights, fans, geysers and AC machines get switched off automatically. On your way to office, your car warns you about traffic congestion ahead and suggests an alternative route, and if you are late for a meeting, it sends a- message to your office accordingly. In the context of emerging communication technologies, which one of the following term" best applies to the above scenario?