151 Amazing Questions and their Answers

We sneeze when our nasal mucosal membrane is swollen or the nerve ending is irritated. The irritation can be caused by anything, which may be a foreign substance or allergen. However, sometimes sneezing occurs when our optic nerve is exposed to bright light. Multiple sneezes or one single sneeze is a reflex of the human […]

The human body is of such type that it cannot hold excessive loss of blood. So there should be some hormone which helps humans to keep stick their wounds and cuts so that they may be intact with their proper working of the body. Blood platelets are the required hormone that helps them for blood

Most of the times we do a deep knee bend and then we hear a popping sound that comes from your knee joints. This is a very common thing that is faced by the people of different age groups. The reason for these sounds in the knees and other joints is because of the tendons,

Food absorption is also known as ‘digestion’ in the language of science. The full system of digestion or food absorption is twelve meters long in the body of the human. In the body of the healthy human this process takes place in normally between 24 to 72 hours. The digestion is also depending on the

There are lots of ways to keep your coats and pants and sweatshirts warmly wrapped around you, like buttons, snaps, hooks, and bowties. Then there are zippers, which are just as helpful as the other ways, but slightly more mysterious. How do they work?  A zipper track is made up of dozens of teeth, each

Pencils can only write for so long before their graphite tips are worn down to nubs, and then we can’t write anymore. This is when we go to the very helpful machines called ‘pencil sharpeners’. Early pencil sharpeners consisted only of two blades situated in a metal housing that was manually turned around the pencil.

Epiglottis has a flap structure which is made up of an elastic cartilage that is covered with hard roof or hard skin known as mucous membrane, which is closely attached at the start of the larynx. There is a risk of epiglottis in the young children or growing children because these glands at some times

Blood is comprised of white blood cells, red blood cells, platelets and plasma. Their main functions are differentiated as transport, maintenance and immunity provider. Each component has its own function. Primarily blood serves as a carrier of useful components to the desired part and waste component back to the respective place. Several functions of bloods

Changing levels of water in the ocean is called tide. In creating tides, the moon plays a very specific role. Not only the moon but also the sun is responsible for fluctuation caused in water level to some extent. The moon is closer to earth, so it is mainly responsible for causing tides. Gravitational force

Oxygen is the most essential factor for keeping us live and this fact is known to all but there can also be a situation when oxygen debt can cause and further on paying such debt back, no loss can be occurred to the person. When your body demands more oxygen but supply is not so,

Laughing gas is nitrous oxide N2O (Di nitrogen oxide). It is a colourless gas with a sweet smell. It acts as an anaesthetic type agent and mainly it is used by dentists on patients so that they may not feel pain. Also, it used as propellant in cream cans, in racing cars as an oxidizing

Heredity is the passing on of characteristics from one generation to the next. It is the reason why offspring look like their parents. The process of heredity occurs among all living things including animals, plants, bacteria, protists and fungi. The study of heredity is called genetics and scientists that study heredity are called geneticists. Through

Genetic engineering is also named as the genetic modification. It’s a directly manipulation of the being’s genome applying modern desoxyribonucleic acid technology. It calls for the origination of the foreign desoxyribonucleic acid or the synthetic genes in the organism of concern. The origination of the new desoxyribonucleic acid doesn’t demand the utilization of the classic

The term fission is a very common term used in both biology and physics. In both the subjects, fission has the same meaning; it means the division of one into two or multiple. In physics, fission is the process in which the radioactive particle is divided into two parts with almost the same molecular masses.

In colour blindness disease no any colour blindness actually exists but it is a colour vision deficiency disease. In this disease the person’s colour spectrum gets narrowed, so he becomes disable to perceive all colours rightly. In human eyes there are three types of cones for three main colour perceptions and each cone is to