The Space Shuttle was a manned, reusable spacecraft operated by NASA.
This animation presents animals commonly kept as livestock and the primal cuts of their meat.
Pollution is the negative effect of human activity on the natural environment.
The animation shows the two-seater Lunar Rover used in the Apollo 15 mission
The protective embankment, or, in case of minor floods, the summer dyke ensures the protection...
The design and structure of modern houses play an important role in environmental protection.
The main sources of water pollution are industry, agriculture and urban areas.
Villages are localities with relatively small populations and only local administrative powers.