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Underwater explosion
An underwater explosion, also known as an UNDEX, is an explosion beneath the surface of water. The type of explosion may be chemical or nuclear. They are categorised in accordance with their depth ... > more -
Mount St. Helens
Mount St. Helens is an active stratovolcano in Skamania County, Washington, in the Pacific Northwest region of the United States. It is located 96 miles (154 km) south of the city of Seattle and 53 ... > more -
Zebra mussel
The Zebra mussel (Dreissena polymorpha) is a bivalve mussel native to freshwater lakes of southeast Russia. Zebra mussels are currently causing serious problems in North America and Sweden, where ... > more -
Global warming
Global warming refers to the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation. The global average air temperature ... > more -
Organic farming methods
Organic farming methods combine scientific knowledge and modern technology with traditional farming practices based on thousands of years of agriculture. In general, organic methods rely on naturally ... > more -
Alternative Fuels
Energy and the Environment
Energy and Resources
Renewable Energy
Fuel Cells
Energy Technology
Ethanol fuel
The use of ethanol as a fuel for internal combustion engines, either alone or in combination with other fuels, has been given much attention mostly because of its possible environmental and long-term ... > more -
San Andreas Fault
San Andreas Fault is a geological fault that spans a length of roughly 800 miles (1287 kilometres) through California, United States. The fault, a right-lateral strike-slip fault, marks a transform ... > more
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