Jagran Josh Logo

General Knowledge for Competitive Exams

Read: General Knowledge | General Knowledge Lists | Overview of India | Countries of World

What is Ozone Pollution and how it affects health?

8 hrs ago
We all know that ozone protect us from UV rays coming from the sun. Then what is ozone pollution, how it is harmful for health and environment. Let us study from this article about ozone pollution.

What is PM 2.5 and PM10 and how they affect health?

Jun 11, 2018
PM stands for Particulate Matter. PM2.5 and PM10 are minute particles present in the air and exposure to it is very harmful for health. When the level of these particles increases and penetrate deeply in to the lungs, you can experience number of health impacts like breathing problem, burning or sensation in the eyes etc. Let's study through this article what are PM2.5 and PM10 and how they affect health?

What does Apgar score mean?

Jun 7, 2018
Apgar score is the test given to infants just after birth to test the condition whether he or she has breathing problem or not, what is the colour of the baby, about his or her heart beat etc. Let us study more about Apgar score, who invented it, what does Apgar stands for, it has any limitation or not etc. through this article.

What is an Alkali and Alkaline solution?

May 29, 2018
Alkali is a basic hydroxide or ionic salt which is soluble in water. All bases are not alkali. They turn red litmus paper to blue having pH value greater than 7. Let us study through this article about alkali, its properties, uses and about alkaline solution.

The Concept and importance of pH Scale

May 29, 2018
S.P.L Sorenson, a Danish biochemist in 1909 devised a scale known as pH to represents the H+ ion concentration of an aqueous solution. The pH value of any solution is a number which simply represents the acidity and basicity of that solution. The pH value of any solution is numerically equal to the logarithm of the inverse of the hydrogen ion (H+) concentration. Hence, the pH of solution is referred to as the negative logarithm of hydrogen ion.

10 important facts about Alzheimer's disease

May 25, 2018
In Alzheimer’s disease loss of connections between nerve cells (neurons) in the brain occurs. Progressively brain disorder which slowly destroys memory and thinking skills etc. In older adults it is the most common cause of dementia. Let us study 10 important or essential facts about Alzheimer’s disease through this article.

What is the Meaning of Net Neutrality?

May 23, 2018
The term “Net Neutrality” was coined by the law professor Tim Wu at Columbia University in 2003. Net Neutrality means that all the internet users are equally important in the eyes of the Internet Service Providers (ISPs). If Net Neutrality is implemented somewhere it means the users of the Facabook, Gmail, Flipkart and YouTube will receive the same speed and access on the internet.

What is Nipah Virus and how it is transmitted?

May 23, 2018
Nipah Virus causes severe infection in humans and animals and get its name from the village of Malaysia where first time it was identified. Let us study through this article about Nipah Virus, symptoms of Nipah Virus infection, prevention and cure etc.

Dementia disease: Causes, Symptoms and Cure

May 16, 2018
Dementia is not a specific disease. It is overall term that describes a group of symptoms associated with a decline in memory or other thinking skills severe enough to reduce a person's ability to perform everyday activities. Let us study through this article about causes, symptoms, types and cure of Dementia disease.

What is a Thalassemia Disease?

May 9, 2018
Thalassemia is an inherited disease which comes from parents to children. It is a blood condition which leads anaemia and fatigue. Let us study from this article about thalassemia disease, its types, causes and symptoms etc.

What are the characteristics of Sound Waves?

May 7, 2018
Sound is a form of energy which makes us hear. It travels in the form of wave. Sound wave can be described by five characteristics. Let us study through this article about it.

What is Blockchain Technology?

May 4, 2018
Blockchain technology allows consumers and suppliers to connect directly, removing the need for a third party. It provides a decentralised database or digital ledger of transactions that everyone on the network can see. Or we can say it is a simple way of transaction. Let us study through this article about blockchain technology, where it is used, who invented blockchain technology, what are its advantages and disadvantages, is it safe to use etc.

What is Washing Soda and how it is produced?

May 3, 2018
Washing soda is sodium carbonate with 10 molecules of water of crystallisation. It is used in the manufacture of glass, soaps, detergents, paper etc. Let us study through this article about washing soda, its production, properties and uses.

What is the difference between Prokaryotic and Eukaryotic Cells

Apr 12, 2018
The cell was discovered by Robert Hook in 1665. Some cells have membrane bound organelles and some do not have. Two types of cells are found in an organisms depending upon the internal structure of cell that is Eukaryotic and Prokaryotic. Let us study through this article about Eukaryotic and Prokaryotic cell, what is the difference between them etc.

9 Interesting facts about Protozoa

Apr 11, 2018
Protozoa are small, single-celled organisms that live in moist environment, such as ponds, swamps and soils. They can survive themselves or sometimes live as a parasite inside the plants or animals. Let us study 9 interesting facts about protozoa through this article.

Why are mosquito bites so itchy?

Apr 10, 2018
Have you ever noticed that when mosquito bites, it seems like nothing happened, but after a while it becomes a red stain and it starts itching. Let us study through this article why mosquito bites are so itchy, is there any scientific reason behind it.

What is Mind-reading machine?

Apr 5, 2018
Mind reading machine refer to the Interpretation of human thought/cognition by brain activity without depending on speech or action. It can also predict the mental state or human behavior.

15 Unknown facts about Viruses

Apr 2, 2018
Viruses are parasites, their infections cause many diseases in the host organism and they spread from one host to the other. Several diseases are caused due to virus, but they are also used for some beneficial works. Let's study some interesting and unknown facts about viruses through this article.

List of different branches of Biology and their Fathers

Apr 2, 2018
Biology means study of life. There was a gradual development of biology in the era of Aristotle. This article deals with the list of different branches of biology and their fathers which is very useful for students preparing for competitive exams like UPSC, SSC, State Services, NDA, CDS and Railways, and will also increase your knowledge.

What are Salivary Glands and their Functions?

Mar 29, 2018
Salivary glands secrete saliva in the mouth which helps in the digestion of food. Saliva is 98% of water but contains electrolytes, antibacterial compounds, mucus, enzymes etc. This article deals with Salivary glands function and types.

Latest Videos

Register to get FREE updates

    All Fields Mandatory
  • (Ex:9123456789)
  • Please Select Your Interest
  • Please specify

  • By clicking on Submit button, you agree to our terms of use
    ajax-loader
  • A verifcation code has been sent to
    your mobile number

    Please enter the verification code below

Newsletter Signup
Follow us on