Option a

The usual symbol for mass is m and its SI unit is the kilogram. ... The weight of an object is the force of gravity on the object and may be defined as the mass times the accelerat...

School app ho tho worksheets solve krne do..

Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into th...

Russian chemist Dimitri Mendeleev started the development of the periodic table, arranging chemical elements by atomic mass. He predicted the discovery of other elements, and left...

Antoine Lavoisier is honoured as Father of Modern Chemistry

Yes RO removes lead from water and frees people from many diseases such as high blood pressure, nerve damage and low fertility. Drinking reverse osmosis water can also eliminate r...

Take a 10 minute walk. According to a few experts if you take a walk it will help reduce endorphins in the system that cause stress. Practice mindfulness. Learning to focus on you...

According to Newton's first law, when all the forces that are at work on an object are balanced, that object will remain in the state that it is in forever. If it is moving, it wil...