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General Knowledge for Competitive Exams

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Why oil and water doest not mix together

Do you know why Oil and Water does not mix together?

3 days ago

We have seen many times and even we have tried at our homes that when we put oil in water and stir it, eventually they separate in to two distinct layers. Why is it so? Through this article we will study why oil and water does not mix together, why oil is sticky and why oil floats on water.

Why Lysosomes are called suicidal bags of the cell

What are the suicidal bags of cell?

Nov 16, 2017

Lysosomes are found in animal cell, they are also known as suicidal bags of the cell. A human cell contains around 300 lysosomes. They not only digest large molecules but also responsible for breaking down and getting rid of waste products of the cell. They have enzymes which allow them to carry out these processes. Let us find out how lysosymes look, what are its function, why they are known as suicidal bags of the cell etc.

1000+ GK Question and Answers on General Science

Nov 14, 2017

General Science plays an important role for Exams like IAS, State PSC, SSC and other similar competitive exams. Here, we are giving a complete set of General Science Questions & Answers in the form of Practice Sets that consists of 1000+MCQs. The questions in different competitive examination are such that to test the aspirants general awareness of a variety of disciplines.

Why light coming from Smartphone is harmful for health

Why Smartphone light is dangerous for health

Nov 13, 2017

Nowadays Smartphone are used by everyone, which has become an important part of life. With the help of these small devices we connect and update with each other, even this has become a great source of entertainment. The Smartphone has many benefits, but it can’t be ignored that the light coming out of the phone can cause significant damage to the health. Let's see how this light of the Smartphone is harmful for health.

Composition and Functions of Blood

Nov 10, 2017

Blood is a red coloured liquid which circulates in our body. It is red in colour because it contains a red pigment called haemoglobin in its red cells. Blood is a connective tissue, it consists of four things namely Plasma, Red blood corpuscles (Red blood cells or RBCs), White blood corpuscles (White blood cells or WBCs) and platelets. Blood helps in transportation of substances, protect against diseases and regulates body temperature.

What is Smog and how it is harmful for us

What is SMOG and how it is harmful for us?

Nov 8, 2017

Smog is derived from two words i.e. smoke and fog which is also described as a mixture of various gases with dust and water vapour and makes breathing difficult. In 17 years such an alarming situation raised in Delhi which raised health emergency. In this article we will discuss about the sources of smog, how it affects our health and how it is formed; what are the necessary precautions that we can take etc.

Economic and Ecological importance of Lichens

Why Lichens are important for environment?

Nov 7, 2017

Lichens are found world-wide and mainly grow on various places like on the bark of tree, walls, rocks, gravestones, roofs and soil etc. It plays an important role in making the environment free from pollution. This article deals why lichens are necessary for the environment, where it is found and what are its economic importance.

What is the role of Helium in Medicines?

Nov 6, 2017

Helium is the lightest noble gas. It consists of various physical and chemical properties due to which it is used in respiratory ailments therapies. Due to its inert gas property it helps in neuroprotection, in surgery, in MRI technique etc. This article deals with the role of helium in medicines and how it is used in various techniques for the treatment of patients.

Why Nitrogen is important for human body

Is Nitrogen important for Human Body?

Nov 1, 2017

Nitrogen is represented by the symbol N. It is abundant in the environment but humans can’t use it directly from air or soil but depends upon green plants and microbes to convert it in to the usable form for using it. But the question arises that why Nitrogen is important for humans and how they use it etc. are discussed in this article.

How Silk is produced from Silkworm

How Silk is produced from Silkworm?

Oct 31, 2017

Silkworm is an insect that makes silk. Its scientific name is Bombyx Mori. The world's first practice of silk production was started in China. Clothes made from Silk and other things are liked by everyone because of its texture. But the question arises, how silkworm produces silk is discussed in this article.

Different types of Kidney Stones

How many types of Kidney Stones are formed in Human Body

Oct 31, 2017

Kidney stone is a common disease. It causes severe pain in back or in abdomen. These stones are made up of minerals and salts deposit in the form of crystals and formed anywhere in the urinary tract. Do you know how many types of kidney stones are formed in the human body and how they occur? What are the symptoms of the formation of Kidney stones etc. are discussed in this article.

List of Phenomena related to Sound

Oct 27, 2017

Sound is all around us but do you know what is sound. It is a type of energy made up by the vibrations produced. It travels as a wave through a medium like liquid, solid or gas but it does not exist in a vacuum of space. This article deals with the various phenomena of sound with explanation for better understanding.

What is the function of hydrogen in the human body

What is the function of hydrogen in the human body?

Oct 26, 2017

Hydrogen is the first element of the periodic table. The most important function of hydrogen in the human body is to keep you hydrated. Water is made up of hydrogen and oxygen and is absorbed by the cells of the body. Therefore, it is a crucial element which is used not in our body but also as a fuel, in military weapons etc. This article deals with the importance and function of hydrogen in the human body.

Do you know which Human Body Organs can be donated

Oct 25, 2017

The organ system functions according to the particular organ like digestive system; it processes the food, etc. Organism’s survival depends upon the integrated activity of the organs and organ system with that of endocrine and nervous system. This article deals about the list of human body organs and tissue that can be donated and the criteria of their donation.

Important Biological Phenomena

List of Important Biological Phenomena

Oct 25, 2017

Biological phenomenon is the series of chemical reactions or other events that result in a transformation. These are regulated by various mechanisms. In this article we are discussing about the important biological phenomena and its impacts.

Do you know how human brain works?

Oct 24, 2017

Brain act like computer for our body. It processes information receives messages and sends back to the body. With the help of brain human able to think and experience emotions. It is a very important part of the human body. But the question arises how brain works. Which part of the brain responsible for various functions and communication? All this will be discussed in this article.

Why Women have more active brain than Men

Do you know Women have more active brain than Men

Oct 14, 2017

One research has shown that women's brain is more active than men. In this article, we will study about the experiment of the researchers that why women have more active brains than men.

Do you know about the Anti-Zika virus vaccine

Do you know about the Anti-Zika virus vaccine

Oct 11, 2017

Vaccine of diseases Zika, Dengue and Hepatitis C have been discovered which will save the lives of the people in India. How it is developed, how it will work, what is Zika, dengue and hepatitis virus etc. are discussed in this article.

Why diamond shine and sparkle

What makes diamond shine and sparkle?

Oct 9, 2017

Diamond is the star of jewellery. Being hardest substance it shines and sparkle. It has three dimensional arrangement of carbon atoms linked together by strong covalent bonds. In this article we will discuss why diamond shine and sparkle. Which property makes it shiny etc.

Which acid is used to peel ginger skin and how it affects health

Which acid is used to peel ginger skin and how it affects health?

Oct 7, 2017

Ginger is a very common spice which is used in almost everyone's homes for cooking. But adulteration of ginger is a life threatening issue which is causing several serious diseases like cancer. Which acid is used by the vegetable vendors to make ginger shiny or polished and how it can affect health is discussed in this article.

Generic vs branded medicine

What are Generic Medicines and why are they affordable

Oct 5, 2017

According to the World Health Organization, if doctor started prescribing generic medicines, then health expenditure can be reduced by 70% in developed countries and developing countries. Generic drugs consumption is only 10-12 percent of the total drug market. Greedy attitude of the drug manufacturer companies, medical stores and doctors don't want to spread the market of generic drugs. In today’s world almost all type of generic drugs are available at the price lower than the branded medicines.

Why do we yawn

Do you know what makes us yawn?

Sep 28, 2017

Yawning is a very common process that everyone does even animals also. Most of us yawn when we go to bed or when we wake up and when we get bored etc. Let us find out the reasons why we yawn. Is it a natural phenomenon?

Plastic-eating fungus discovered

Do you know about the ‘Plastic-eating’ fungus discovered in Pakistan

Sep 27, 2017

Scientists have discovered a natural method to degrade plastic which take decades. They have found a fungus that can break a non-biodegradable plastic in weeks by secreting enzymes which pull apart individual molecules. Let us find out about this fungus, how it works, what is the name of the fungus.

Top 10 countries with largest military expenditure in the world

Sep 27, 2017

The defence budget of US military for the fiscal year 2018 is $ 824.6 billion. This budget has a base budget of $ 574.5 billion for the development of the US Army, whereas $ 64.6 billion is set aside to fight Islamic State and war on foreign lands. America's defence spending is more than the total defence budget of top nine military spenders of the world. India's entire defence budget is $56 billion.

Diseases caused due to lack of water

What are the diseases caused due to lack of water?

Sep 26, 2017

Life is not possible without water on the planet. Our body consists 50 to 60 % of water. If we drink less water or suffers from chronic dehydration, then we should take it seriously because lots of diseases can be caused due to lack of water. In this article, we will be discussing about the diseases caused by water deficiency.

What is Bombay Blood Group

What is Bombay Blood Group and how it is discovered?

Sep 20, 2017

Have you heard or read about the blood group, which is also called Rare of the Rarest. Which is found with great difficulty. This is not O negative but it is called Bombay blood. What is it, how it is formed in the body, where it is found, why it is called Bombay blood, etc. will study through this article.

Why Ice floats on Water

What is the reason behind floating ice on water

Sep 15, 2017

Have you ever thought! How any solid object floats on any fluid? Solids are hard and rigid like stones. They immersed in water, but the ice, which is a solid substance, does not sink in water, but floats. Why? Let us find out why ice being a solid substance floats on water.

Why Saturn have rings and what are they made of

Do you know why Saturn have rings and how they are formed?

Sep 15, 2017

Saturn have rings and is the most striking feature of the Solar System. How many rings Saturn have, of what these rings are made up, Why Saturn have rings, how these rings are formed etc. are answered in this article

Is Nitrogen drink dangerous for health

Sep 12, 2017

Liquid Nitrogen is a fluid that is used in foods such as drinks, ice creams, etc. Nitrogen drinks look great and appeal everyone, but how to use it, try to figure out how much damage it may cause, Is it safe to drink or not etc are discussed in this article.

What is the difference between Li-Fi and Wi-Fi Technology

Jul 27, 2017

Electronic devices and network technology plays an important role in our life. Wi-Fi technology is wireless local area network technology which allow electronic device to access internet. Whereas Li-Fi technology is a light based communication technology that delivers a high-speed, bidirectional network and mobile communication. This article deals how these technology works and what is the main difference between Li-Fi and Wi-Fi technology.

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