or log in
The water supply system provides clean and safe drinking water for the consumers.
Tidal power stations utilise the daily fluctuation of the water level for producing...
The Kepler space telescope was launched by NASA to discover Earth-like planets orbiting...
Air transport has become the fastest, most reliable and most popular form of travel.
Raw iron is produced from iron ore in iron smelters.
Tennis is played on a court covered with grass, clay or synthetic material.
People do a wide range of jobs every day. But is there a way to categorise all these jobs?
Pollution is the negative effect of human activity on the natural environment.