The extinct species The numbers of living organisms are 10 million species now. There are about 138 species which become extinct every day, So, If the rate of extinction is constant. a great number...
The atomic radius is used as a measure for the atomic size of the atom, and its measuring unit is picometre (Pm), The picometre is part from million of million part of metre.
The waves The wave motion is an example of the periodic motion. the wave is a disturbance that propagates and transfers the energy in the direction of the propagation, You notice that the concentric...
Scientists witnessed five mass extinctions, and some scientists believe that we live in the sixth extinction age (The Recent Extinction), where the rate of extinction is 40 times larger than the normal rate of...
