APSC Prelims and Mains Notes, APSC Test Series
Biofertilisersare organisms that enrich the nutrient quality of the soil. The main sources of biofertilisers are bacteria, fungi and cyanobacteria. Rhizobium bacteria is found in symbiotic assosiation the root nodules of leguminousplants. These bacteria fix atmospheric nitrogen into organic forms, which is used bythe plant as nutrient.Azotobacter and Azospirillum also fix atmospheric nitrogen, but these … Read more
. India is at the learning stage for many of the complex technologies required to create a BMD system. DRDO’s record in producing weapon systems has not been encouraging as exemplified by the delayed induction of the LCA, the failure of the Arjun MBT and the virtual rejection of the INSAS rifle by the Indian … Read more
A) Emission trading: Emission trading is a market based approach to control pollution. In this a set of quota is set as limitation on the amount of carbon that can be emitted. If the entity exceeds the quota it has to buy from a seller which has emitted less quantum of carbon than the prescribed … Read more
Saras Mk2 It is a light transport aircraft which is indigenously developed by National Aerospace Laboratory (NAL) The 19-seater aircraft, developed with a target cost of ₹50 crore, is at least 20-25% lower in cost than other aircraft in the similar category. pitching or the government’s UDAN (Ude Desh Ka Aam Nagrik), since it has … Read more
Applications of atmospheric pressure Drinking Straw When drinking with a straw, one has to suck the straw. This causes the pressure in hte straw to decrease. The external atmospheric pressure, which is greater, will then act on the surface of the water in the glass, causing it to rise through the straw. Rubber Sucker When … Read more
A concern about what affect genetically modified material could have on human health. For example, transgenic crops have been suggested to cause allergies in some people, although it is uncertain whether transgenic crops are the source of this reaction. Furthermore the antibiotic resistance genes placed in these crops has been suggested to cause resistance to … Read more
India’s Polar Satellite Launch Vehicle (PSLV-C45) successfully launched EMISAT and 28 international customer satellites from Satish Dhawan Space Centre (SDSC) SHAR in Sriharikota. This flight marked the first mission of PSLV-QL, a new variant of PSLV with four strap-on motors. EMISAT is a satellite built around ISRO’s Mini Satellite-2 bus weighing about 436 kg. The … Read more
Applications of hydraulic pressure Hydraulic Lifts and Fluid Power Blaise Pascal derived a law that explains how people can harness the power of fluids. When you apply pressure to liquid in a confined container, that pressure transmits equally to all other points in the container. According to the law, it’s also possible for a hydraulic … Read more
LIDAR is short for Light Detection And Ranging. It’s a more modern (but still pretty old) version of the tried and true radar which is short for Radio Detection And Ranging. Radar uses radio waves to detect objects and determine their range, angle, and/or velocity while lidar does basically the same thing, but with pulsed … Read more
. Important tools which come under Biotechnology are as follows: Genetic engineering Genetic engineering is the process of using recombinant DNA (rDNA) technology to alter the genetic makeup of an organism. Traditionally, humans have manipulated genomes indirectly by controlling breeding and selecting offspring with desired traits. Genetic engineering involves the direct manipulation of one or … Read more