Man has turned almost every force of nature to his own gain, thus making his life richer and more comfortable. Oceans and rivers of the world are the greatest force of nature. Man dominates over the ocean by using ships as a means of transport. Man has made an excellent use of rivers too. Rivers are used for irrigation purposes, to obtain hydroelectric power, river valley projects and also as a means of inland transport.
Electricity is a force of nature and it is used in man's daily life, in every field of energy.
Man has conquered the air and has also conquered space. Man has also discovered atomic energy, which is used to treat diseases and improve crops. Man also uses solar energy in various ways. Every organism depends on nature directly or indirectly to get necessary things needed for their survival. Due to the various inventions and innovations of man, everyone is now running after material gains.