When a disease occurs over a large area of earth‘s surface at one time, it is called Epidemic disease.
▪ The area between the Tropic of Cancer and the Trpic of Capricorn, where the sun is vertically overhead at some point of the year is called The Torrid zone.
▪ Deficiency of Vitamin C causes Scurvy.
▪ What does Angstrom measure? Speed of ships
▪ The scientist who first discovered that the earth revolves round the sun was Copernicus.
▪ ―Digital Computer was invented by Howard Alken.
▪ Wood is the least conducter of electricity.
▪ ―Cryptography deals with the study of secret writing.
▪ What is laughing gas? Nitrous Oxide
▪ The element common to all acids is Hydrogen.
▪ Diamond is an allotropic form of Carbon.
▪ Earth revolves around the sun from? West to east
▪ Philately is the science of stamp collection.
▪ Hydrometer is used for specific gravity of liquid.
▪ Which vitamin easily prepared in body? vitamin D
▪ Which gas is commonly used in balloons? Helium
▪ The most abundant element in earth curst is Oxygen (O) 46.6% and silican is the secondabudent element of earth and silican is called earth maker.
▪ One horse power is equal to 746 watt.
▪ Which colour phosphorus used in matches? Red
▪ Oldest known element? Copper
▪ Which shape of carbon is used in lead pencils? Graphite
▪ Artificial silk is called rayon.
Basic component of paper is wood.
The bar is a unit of pressure equal to 100 kilopascals and roughly equal to the atmospheric pressure on Earth at sea level.
▪ Light year is the unit of distance.It is the distance that light can travel in one year. A light year is equal to 9.46 trillion kilometers.
▪ Largest organ of the body is Skin and largest gland is Liver.
▪ Kidney disease due to overdose of vitamin c.
▪ CPU is an abbreviation of Central Processing Unit.
▪ Cusec is unit of water flow.
▪ ATM stands for Automated Teller Machine.
▪ Mirage is an example of refraction of Light.
▪ Sound travels fastest in Glass.
▪ The gravitational force on the body is called as Weight.
▪ Most astronomers believe that origin of the Universe is Big Bang Theory.
▪ Hepatitis and jaundice are the diseases of Liver.
▪ Neon gas is used in decoration lighting.
▪ Creature having both male and female organs is known as Hermaphrodite.
▪ A low area storm with high winds rotating about a center of low atmospheric pressure is called Cyclone.
▪ The first Muslim scientist who presented the law of reflection and refraction isIbn-ul-Haitham.
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