Home » Kids Questions & Answers » Science & Mathematics Questions & Answers

Science & Mathematics Questions & Answers

Science & Mathematics Questions & Answers

What is blood group? Types, Blood Transfusion

What is blood group?

Perhaps you already know, which blood group you belong to: A, B, AB, O, Rhesus + Rhesus + (Rhesus Positive), or Rhesus – (Rhesus Negative). But do you know what these letters and signs mean? Although all human blood looks the same when see under a microscope, we do not all have the same type of blood. Some substances, found …

Read More »

What is the purpose of blood? Function, Structure

What is the purpose of blood?

Blood plays vital role in the life of our body. It is a fluid that circulates through the heart and blood vessels, supplying nutritive materials to every part of the body and carrying off waste products. It is colorless fluid, plasma, in which float myriads of corpuscles. There are of three kinds: red, white and platelets. Learn More: Blood is …

Read More »

Who invented the Cigarette?

Cigarette smoking is injurious to health

The cigarette was the last method of taking tobacco to be developed. Previously it had been smoked in pipes and cigars, inhaled as snuff (in powder form) and chewed. Tobacco itself was brought to Europe and the rest of the world when Columbus discovered America, and it was thought to have marvelous medicinal properties. No one could be said to …

Read More »

What is terminated seed technology-based bollygard seeds?

What is terminated seed technology-based bollygard seeds?

The bollygard cotton seed is suspected to have the ‘terminator seed’ technology which involves introduction of a gene that terminates the germination of the seeds after onetime usage. ‘Terminator’ is actually a name coined by the Canadian non-governmental organisation Rural Advancement Foundation International (RAFI) for a technology that essentially controls the expression of certain genes, causing the plant to turn …

Read More »

What is Mission Shakti? Name the Missile & satellite used in it?

Mission Shakti

What was the test? On March 27, 2019 India conducted Mission Shakti, an anti-satellite missile test, from the Dr. A P J Abdul Kalam Island launch complex. This was a technological mission carried out by DRDO. The satellite used in the mission was one of India’s existing satellites operating in lower orbit. The test was fully successful and achieved all …

Read More »

Why are cancer and AIDS so feared?

Why are cancer and AIDS so feared?

Cancer and AIDS are two of the most dreaded diseases. They are not highly infectious diseases like the plagues of centuries past, so that people who are with sufferers are not necessarily at risk. But they can be difficult to treat, and there is little hope for patients who have either disease in its advanced stages. The two diseases may …

Read More »

What does cold blooded mean?

What does cold blooded mean?

Warm blooded creatures such as mammals have a body temperature which stays roughly the same whatever surroundings they are in. This temperature varies from creature to creature, for example the body temperature of any healthy human is 98.4 degrees Fahrenheit. Some creatures are cold blooded, which means that the body temperature varies according to the animals surrounding. This means that …

Read More »

Where does tobacco come from? QA For Students And Children

Kids Questionnaire - Where does tobacco come from?

Tobacco is the name given to the plant and cured leaves of Nicotiana, and it can be used in various ways – for smoking, chewing and snuffing. It was first cultivated by the Indians of North and South America. Accounts of Christopher Columbus’s first voyage in 1492 speak of the natives of Cuba using ‘smoking reeds’ – a kind of …

Read More »