Every Day Science mcqs
Every Day Science mcqs For PPSC, FPSC, NTS
Plants growing in extremely dry condition are called Xerophytes
Roots absorb water from soil which is Hygroscopic
Legumes increase the fertility of the soil by adding nitrogen to the soil
New varieties of organisms can be brought about by hybridization
Male child is born of xy chromosomes are united
Fertilization is fusion of two game ties of different strains
Fruit developed from single ovary is
called simple fruit
Seeds are developed from Ovule
Grains swell in water due to imbibition
Chlorophyll contains magnesium
Oxidation is the process in which electron is lost
If a green leaf is seen in a red light its color will be black
On a standard rainbow Violet color is on the inside of the Curve
During the winter months 90% of fallen leaves are taken underground by earth worm
Hydrosis is the medical term for Sweating
Father of modern chemistry is Jabir bin Hayyan
Natural radioactivity was discovered by Becquerel in 1996
The charge on an electron is Negative and charge on a proton is Positive
Fluorine is used to prevent tooth decay
Wind blowing in a spiral form around a region of low atmospheric pressure is a Cyclone
Entomology deals with Insects
Female mosquito Aedes Aegypties is the cause of Dengue fever
The earth is the densest planet of universe. It has density of 5.515 time that of water.
Speed of sound in air is 1200 KM/Hour
0.200 grams are equal to one carat.
Angiosperm includes the plants which have covered flowers and covered seed.
Plant cells resembles animal cell because having a cell membrane made of protoplasm
Atomic pile is a place where nuclear fission is made.
Dewar’s flask is called as thermos
Atomic weight of chemical compounds is determined by Mass spectroscopy
Chief food of mosquito larva is microorganism Found in water
Chief food of butterfly larva is leaves of plants
Com adds more oxygen to the atmosphere than it removes
Earthworm is a bi-sexual.
Eyes of insects are compound.
Silk is obtained from cocoon of silk worm.
Clinical thermometer usually measures in Fahrenheit
Tube light emits radiation even after it is disconnected. It is due to Fluorescence.
The conversion of gases into liquid under high pressure and low temperature is called regulation
Skin does not excrete oil.
The rate of transpiration depends upon frequency of Stomata
Light is necessary for photosynthesis because it produce ATP and reducing substrate
Oxygen liberated from photosynthesis comes from water.
Cathy Pacific is an island
In cryptograms, the sex organs are primitive and hidden
Dyne is a unit of Force.
Photolysis is dissociation of water molecule in the chemical reaction of photosynthesis
Sandy soil is dry in comparison to clay due to Capillary action
Anton van Leeuwenhoek firs! time saw bacteria through a microscope made by him in 1683
A seed is a ripened ovule.
Exobiology is the study of life or its possibility on other planets
Lightning is formed when strong opposite charges in different clouds break down the resistance offered by intervening air.
John Dalton, an English scientist, gave Atomic Theory in 1803 describing atom as the smallest unit of an element
Gas in children’s balloon is Helium
Ordinarily an atom is a neutral particle
The intensity of the energy released by an Earthquake is measured by the Richter scale
The most common element in the universe is Nitrogen
Sound travels more rapidly in solids Maximum limit of sound beyond which a man can become ceaf is 129 decibel
Echo can only be produces when the distance of the obstacle is at least 17 meters
When we hear a sound, its impressions remain in our ear for 1/10th of a second
Image persists for about 1/10th of second in our eye for creating a persistence of vision, pictures are projected at the rate of 10 or more/sec
Videotape used in camcorders to record audio and video signal employee fine grains of iron oxide
The laws of reflection were first discovered by al Hazen
0.200 grams are equal to one carat.
One million cycles per second is called Megahertz.
US Inventor Samuel More developed the system of dots and dashes of telegraph that was known as Morse Code
Scientist now think that protons and Neutrons are themselves made of still smaller particles called quarks.
Derailleur gears are used in Bicycles
Cantilever brake used in Bicycle
Speed of light 300.000 kilometers per second
Centigrade and Celsius temperatures are same below freezing point
Manometer is used to measure pressure
The velocity of light was first measured by Olal Roemer
The first European scientis! who refuted the belief that the earth was the centre of the universe was Copernicus
Mobile phones transmit message using radio- type waves called microwaves
Super conductors are also strong
diamagnetic, this means they strongly repel magnets
Some of the chemicals from the recycle of old cells are used by liver to make bile which is stored in gall bladder.
Plastics lighter than gold
Lasers are a special source of light called coherent light this means all the light waves are in step with each other and travel in same direction
Laser produce light of one particular
wavelength and it is a single, pure color
The first hologram was made in 1962
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