Science DMPQ

Most of the nuclear reactors work on the principle of nuclear fission. The energy released in the reaction is used to turn water into steam. The steam is used to run the turbine. Diff types of nuclear reactor: Type of reactor Characteristics Light water reactor 1.    Boiling water reactor ·         Reactor core heats water which … Read more

1) GSAT-7A:    GSAT-7A with a lift-off mass of 2250 kg, is a geostationary satellite carrying communication transponders in Ku-band. The Satellite is built to provide communication capability to the users over the Indian region. It was launched by the GSLV-F11 launchpad.  It is ISRO’s 7th flight with indigenous upper stage cryogenic engine.  The four liquid … Read more

Immunity is the ability of the body to fight against infectious agents. The immunity can be classified as innate immunity and acquired immunity. Innate immunityis a non-specific type of defense mechanism.  It has four types: i) Physical barrier: Example, skin covering of the body, secretion of mucous in the respiratory tract ii)Physiological barrier: Example, acid in the … Read more

e-Cigarettes are battery powered devices that work by heating a liquid into an aerosol that the user inhales and exhales.  The e-cigarette liquid typically contains nicotine, propylene glycol, glycerin, flavorings, and other chemicals.   Why Blanket ban: e-Cigarettes usually contain nicotine which makes product addictive. e-Cigarettes cause health hazards for youth, young adults, and pregnant women. … Read more

What is catalytic converter? What is its significance. Ans:       Catalytic converters, having expensive metals namely platinum palladium and rhodium as the catalysts, are fitted into automobiles for reducing emission of poisonous gases. As the exhaust passes through the catalytic converter, unburnt hydrocarbons are converted into carbon dioxide and water, and carbon monoxide and nitric oxide … Read more

Neutrinos are the elementary particles found in the universe, which have no charge and have very little mass. They are electrically neutral and have weak interactive force. They are generally formed in the nuclear core of the sun. Radio active decay is also one of the source of neutrinos. They have the unique property of … Read more

Many somatic plant cells, including some fully differentiated types (e.g. leaf mesophyll),provided they contain intact nuclear, plastid and mitochondrial genomes, have the capacity to regenerate into whole plants. This phenomenon is totipotency.Totipotent cells from plants have been used in tissue-culture techniques to produce improved plant materials that are pathogen-free and disease-resistant. Totipotent cells fromanimals are … Read more

 Alternatives to pesticides are available and include methods of cultivation, use of biological pest controls (such as pheromones and microbial pesticides), genetic engineering and methods of interfering with insect breeding.  Application of composted yard waste has also been used as a way of controlling pests. These methods are becoming increasingly popular and are … Read more

Neutrino Ans:   Neutrinos are one of the fundamental particles which make up the universe and second most abundant particle in the universe after photon. Neutrinos are similar to electron with one crucial difference that they don not carry electric charge.   Indian -based Neutrino observatory Ans:   It is being set up in Bodhi west Hill, … Read more

Deepfakes are so-named because they use deep learning technology, a branch of machine learning that applies neural net simulation to massive data sets, to create a fake. Artificial intelligence effectively learns what a source face looks like at different angles in order to transpose the face onto a target, usually an actor, as if it … Read more