Regularly asking Science Questions in PSC Examinations(28/12/2015)
50-Precious Science Questions Especially Appearing for PSC Exams(28/12/2015)
The following are basic questions in Science section and most of them will appear for any of the Kerala PSC exams in 2015 or PSC Exams in 2016.Certain percentage of people start to study after PSC notification come ,but that will not help them to enter in PSC Rank list.
- Well defined nucleus is absent in lower organisms coming under
Ans:Prokaryte - Cholera is caused by a bacterium belongs to the group
Ans:Vibrio - Light from the Sun reaches earth in nearly
Ans:8 minutes - Survival of the fittest is a theory of evolution put forward by
Ans:Charles Darwin - A compound which contains only Hydrogen and Carbon is called a
Ans:Hydrocarbon - The liquid used to preserve specimens of plants and animals
Ans:Formalin - Mass number of an element having 147 neutrons and atomic number 92 will be
Ans:239 - Auriscope is used to detect
Ans:Ear disorders - Descending order of the hierarchy of levels of biological classification is
Ans:Kingdom,phylum,class,order,family,genus,species - The response of a plant to heat is called
Ans:Thermotropism - All cells are derived from the existing cell is the part of —theory
Ans:cell theory - Mirage is due to
Ans:unequal heating of different parts of the atmosphere - Stars which appear single to the naked eye but are double when seen through a telescope are
Ans:binary star - The inherited traits of an organism are controlled by
Ans:Genes - The most abundant element in the moon
Ans:Oxygen - The gas formed when Potassium permanganate is heated
Ans:Oxygen - The line that separates atmosphere and outer space
Ans:Karman line - Papiloma is the virus that cause
Ans:Wart disease - Which hormone is related to the disease Tetany
Ans:Parathormone - The cell wall of plant cells is mainly composed of
Ans:Cellulose - What type of mirror is used in the rear view mirror of automobiles
Ans:Convex - Instrument used in submarines to view the surface of water
Ans:Periscope - Which has the biggest eye among the land mammals
Ans:Horse - The most abundant metal in Earth
Ans:Iron - The prolonging of sound due to reflection is called
Ans:Reverberation - Who was the first to state that the earth revolves round the sun
Ans:Copernicus - Who discovered Doppler Effect
Ans:Christian Doppler - The process of water becoming vapour is
Ans:Evaporation - Which element has the lowest melting point
Ans:Mercury - Amount of water in the atmosphere is known as
Ans:Humidity - Visible part of sun is
Ans:Photosphere - Which is known as the king of inventions
Ans:Steam engine - Ozone quantity is measured by the unit of
Ans:Dobson - Which element has the least ionization energy
Ans:Iron - The word cell was first used by
Ans:Robert Hooke - Which plastids help plants in the process of photosynthesis
Ans:Chloroplast - What is the colour of light used in automobiles during snow fall
Ans:Yellow - Who discovered the bacteria that cause cholera
Ans:Robert Koch - The foundation of germ theory of disease was set down by
Ans:Louis Pasteur - The plants which is poisonous and also used as medicine
Ans:Castor and datura - Light year is a unit of
Ans:distance - The power of lens is stated in
Ans:Dioptre - Nuclear sizes are expressed in a unit named
Ans:Fermi - The vitamin which is destroyed by heat is
Ans:Vitamin C - Chronic consumption of excess selenium can lead to
Ans:Muscle weakness - PH of pure water is
Ans:7 - Which trace mineral is a component of the enzyme that activates vitamin A in the eye
Ans:Zinc - The science of calculating the age of trees by counting the annual rings
Ans:Dendrochronology - Brilliance of diamonds is due to the phenomenon of
Ans:Total internal reflection - Pa(Pascal) is the unit of
Ans:pressure