Science and Tech

Science is taking information about any thing and applying the information in the right way and observing and analyzing any thing correctly.

In this page you will find Science notes, which are in Hindi; All these are extremely useful for various competitive exams. If you are looking for competitive exams like; If you are preparing for UPSC Exam, UPPSC, SSC CGL etc. then keep visiting this category.

Select the major branches of science given below: Physics | Chemistry | Biology

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What is Dark web?

Mostly we use the World Wide Web to receive and share information through the Internet, which is known as Web…

What is oxygen

Oxygen is a chemical element with symbol (O) and atomic number 8. It is a member of the klaxane group…

What is chemical energy?

Chemical energy: Energy is defined as the ability to act where work is the motion of the body for a…

What is Bio-Medical Waste?

Bio-medical waste covers health institutions (such as hospitals, laboratories, immunization work, blood banks, etc.) in human and animal physiological waste…