Do you know what is the Earth’s atmosphere? The Earth’s atmosphere is composed of a mixture of the different gases that make life on the Earth possible. Components of the atmosphere The atmosphere is...
If you look around you, you will notice that everything needs the energy to do its functions. You need food to obtain the energy that helps you to work, move, play, …..etc, Your car...
Do you know what is the meaning of friction? The friction force is the force that exists between the two surfaces when they touch each other and it affects in the opposite direction of...
Pollution is very dangerous, There are different kinds of pollution as air pollution, water pollution & soil pollution, pollution is any change in the environment that disturbs its natural balance. Soil pollution is any...
