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General Knowledge for Competitive Exams

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What is the Origin of Zero in India?

20 hrs ago
Zero is a symbol for the concept of nothing or having nothing. Now a day’s zero both as a numeric symbol and a concept help us to do calculus, in solving complicated equations and is the basis of computer. This article deals with the invention of Zero in India, how and when it took place.

List of Organs that help in Digestion of Human Body

1 day ago
In the process of Digestion, food is broken down into smaller parts to provide energy. The digestive system is made up of the gastrointestinal tract, which is a series of organs joined from mouth to anus. This article deals with the list of organs that helps in the digestion.

Why we should not sleep under a tree at night?

Feb 15, 2018
Plants are an important part of our life. With the help of photosynthesis, plants prepare their own food. They produce glucose and oxygen from carbon dioxide and water. They help us to reduce the pollution. But have you ever thought why we should not sleep under the tree at night? Let's study through this article.

What is Uniform Circular Motion?

Feb 13, 2018
When the body changes its position with respect to its surrounding, the body is said to be in Motion like motion of moon around the earth. This article deals with a type of motion i.e. Uniform circular motion with examples.

10 Amazing facts about PSLV C-40

Feb 12, 2018
One of the world's most trusted launch vehicles is Polar Satellite Launch Vehicle (PSLV). It has been providing its services for more than 20 years. Let us study some amazing facts about PSLV C-40 through this article.

General Science A Complete Study Material

Feb 12, 2018
Understanding the basics of General Science can lead any aspirant to achieve good marks in the examination. Therefore, We have compiled a complete study material on General science with major subjects like Biology, Chemistry and Physics.

What is doomsday clock?

Feb 8, 2018
The Doomsday Clock is a symbol which represents the likelihood of a man-made global catastrophe. This clock is taken care of by the members of the Bulletin of the Atomic Scientists since 1947. This clock represents the causes responsible for threat to humanity. If this clock shows 12 O’clock at midnight; it means that the world can end anytime.

What are the laws of Floatation?

Feb 8, 2018
Floatation depends upon the density. If an object has density less than the density of water, it floats. Principle of floatation is stated by the Archimedes. This article deals with what is floatation, laws of floatation, its applications and examples.

Important facts about Motion

Feb 8, 2018
The Motion requires force to cause that change. It is the process of moving, changing place or position. There are various laws and concepts related to motion which will be useful in understanding the various phenomena held in our daily life. This article deals with various concepts and examples of motion.

What is the difference between Steel and Stainless Steel?

Feb 8, 2018
Steel and stainless steel are the common materials used in the country. There are differences between the two regarding properties, composition, weight, price, etc. This article deals with such differences between steel and stainless steel.

What is the function of Earwax in the Human Body?

Feb 7, 2018
Some people have dry or wet earwax. This wax is very useful and helps in keeping our ears healthy. It lubricates and protects the ear. This article deals with some important facts about earwax, its function etc.

How Plants obtain Carbon Dioxide from atmosphere?

Feb 6, 2018
All living organisms need energy to perform various life processes and so plants also. To perform various metabolic activities plants need food for energy. With the help of the process of photosynthesis plants prepare their own food. This article deals how plants take carbon dioxide from atmosphere for photosynthesis.

Mode of Nutrition in Plants

Feb 6, 2018
Plants make their own food in the presence of sunlight and hence they are autotrophs. Plants convert sunlight energy into chemical energy. They use carbon dioxide, water and sunlight to make their own food in the presence of chlorophyll.

Which technique helps to grow artificial ear in the Human Body?

Feb 1, 2018
Microtia is a disease of ear in which external ear remains underdeveloped. To correct such type of defect scientists has developed a technique through which an artificial ear can be grown in the human body. Let us discuss through this article about this new technique and Microtia-Anotia ear disease.

What is Phototropism in Plants?

Jan 31, 2018
Plants also shows movement with the help of an external stimulus and the movement of a plant part in response to light is called phototropism. This article deals with the phototropism and how it takes place in plants. How plant hormones help in the movement of plants.

How Ionic Compounds are formed?

Jan 29, 2018
Ionic compounds are also known as electrovalent compounds. The chemical bond formed by the transfer of electrons from one atom to another is known as Ionic bond. These compounds contain ions. Through this article we will study about the ionic compounds, how they are formed with examples etc.

What is bio toilet and how does it work?

Jan 29, 2018
Bio toilet is a decomposition mechanized toilet system which decomposes human excretory waste in the digester tank using specific high graded bacteria (aerobic or anaerobic) further converting it into methane gas and water. Bio toilet is a different toilet as compare to the traditional restrooms. It saves a lot of water and helps in keeping the station clean.

What is Super Blue Blood Moon?

Jan 25, 2018
A supermoon is a moon that is full when it is at its closest point in an elliptical orbit around the Earth and a total lunar eclipse or blood moon in which Earth's shadow upon the lunar eclipse gives it a reddish colour. This article deals with super blue blood moon, its features and significance.

What are Kepler’s laws of Planetary Motion?

Jan 24, 2018
Kepler’s planetary law of motion describes the motion of satellites around the planets. Let us study through this article what are Kepler’s three laws of planetary motion with explanation.

What is Nastic movement in plants?

Jan 19, 2018
Plants do not move from one place to another, but they also show movement in response to the external stimulus. There are various types of movement shown by plants. It may or may not be a growth movement. This article deals with nastic movement in plants, its types and examples.

List of ISRO Chairmen

Jan 18, 2018
The Indian Space Research Organisation (ISRO) is the space agency of the Government of India headquartered in the city of Bangalore. Since 1963 there are 10 chairman of ISRO has been appointed. The current chairman of the ISRO is K. Sivan who took the charge in January 2018.The first chairman of the ISRO was Dr. Vikram Sarabhai.

List of important hormones and their functions

Jan 17, 2018
Various glands are present in our body which secretes hormones which are essential for the growth, development, reproduction etc. Different hormones have different effects on the shape of the body. This article deals with the list of important hormones and their functions.

Global Warming: Effects and Causes

Jan 15, 2018
Global Warming is the increase in Earth's mean surface temperature because of the effect of greenhouse gases. These gases absorb long wave radiations and warm the atmosphere, and this process is called as Greenhouse effect. It had led to many changes on the planet, such as rise in sea level; massive melting of snow and land ice, elevated heat content of the oceans, increased humidity, change in the timings of seasonal events, and many others. The main greenhouse gases, namely:Carbon dioxide (CO2); Methane (CH4); Nitrous oxide (N2O); Hydrofluorocarbons (HFCs); Perfluorocarbons (PFCs); and Sulphur hexafluoride (SF6).

What is the difference between LED and CFL bulbs?

Jan 11, 2018
We all use LEDs or CFL bulbs. But do you know what is the difference between LED and CFL bulbs? Which bulb is better LED or CFL, in which power consumption is less, which material is used in making it and how it works, etc. Through this article we will try to study about these LED and CFL bulbs.

How ISRO will make Indian Railways safe?

Jan 10, 2018
ISRO is using its Indian Regional Navigation Satellite System (IRNSS) or NaVIC (Navigation with Indian Constellation) in Indian Railways with the help of joint collaboration between ISRO and Indian Railways to make railways safe or to curb accidents. This article deals with the satellite system used by ISRO for Indian Railway safety, what is IRNSS system, how IRNSS or NaVIC system work, GPS is better or IRNSS is also discussed in the article.

How Gravitational Force holds the Solar System together?

Jan 8, 2018
The gravitational force of earth is responsible for holding the atmosphere above the earth. It is also the gravitational force of earth which keeps us firmly on the ground. Various objects attract each other due to gravity only. This article deals what is gravitational force and how this force holds the Solar System together.

What happens on internet in 1 minute

Jan 5, 2018
Today we are living in the era of social media. The population of the world has crossed 7.47 billion out of which 4.9 billion have mobile phones. A huge $751522 is spent on online shopping in a minute. This article is showing some very interesting facts about the activities occurring in a minute on internet.

What is momentum and its importance in everyday life?

Jan 4, 2018
Momentum is about every activity that involves motion. It is an essential concept of physics and is also used in everyday life. How momentum works, why momentum is important, concept of momentum with examples etc. are discussed in the article.

List of the diseases caused due to Food Poisoning

Dec 29, 2017
Food poisoning is caused due to adulteration and this can often be increased due to changing of place, changing food, etc. The main reason for food poisoning is eating contaminated food. Symptoms of food poisoning include upset stomach, nausea, vomiting and abdominal cramps. Through this article we will learn about the list of diseases caused by contaminated food or by food poisoning.

Why Speed and Velocity are not always equal in magnitude?

Dec 29, 2017
Speed of a body is the distance travelled by it per unit time and Velocity of a body is the distance travelled by it per unit time in a given direction. This article deals with why Speed and Velocity are not always equal in magnitude and illustrated with the help of an example.

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