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...
The periodic motion The periodic motion is a motion which is regularly repeated in equal periods of time, The oscillatory motion and the wave motion are examples of the periodic motion.
The extinction Extinction is the continuous decrease without compensation in the number of a certain species of the living organisms until all the members of the species die out or it is the dying...
The thermosphere layer is called the thermal layer as it is the hottest layer of the atmospheric envelope. It is the fourth layer of the atmospheric envelope, The temperature of the thermosphere layer increases...
