Tag Archives: India Science & Mathematics Q&A

What is the cause of the earth’s magnetic field?

What is the cause of the earth’s magnetic field?

Originally, it was thought that the centre of the earth has magnetized iron deposits, which caused it to act like a huge permanent bar magnet. However, the theory failed to explain how the magnetic field had sustained itself for long, because even if there was magnetized iron in the core earlier, the core of the earth is so hot that …

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What was the first life on the Earth?

What was the first life on the Earth?

Until quite recently it was thought that there were no abundant life forms on this planet until about 600 million years ago. When we remember that the Earth itself is at least 4500 million years old, it does seem to have taken a very long time before any animals or plants appeared. Then, geologically speaking, they must have developed very …

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What does cold blooded mean?

What does cold blooded mean?

What does cold blooded mean? 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. …

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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 …

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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 …

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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 …

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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 …

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