05.07.2009

Sorry, this entry is only available in עברית.

All rock at or near Earth’s surface is being modified by the processes of metamorphism, melting, crystallization, lithification and weathering. These processes move rock material through the states of metamorphic rock, igneous rock, sedimentary rock, melts and sediments. The natural and continuous cycling of rock material through these states is known as the rock cycle

Water desalination method

Such as a vehicle for transporting dangerous substances such as gas

A facility for the production or electricity or a power station where the two following conditions take place: (1) the energy used to generate electricity is renewable energy; (2) the rate of the renewable energy is not less than 70% of the total energy produced in the facility; in this matter, the use of fossil fuel during the course of electricity generation will be for back-up / support reasons only and its rate will not be higher than 30% of the overall electricity produced