Irans leading export is in energy sector. Firstly Oil, then Gas
islam
rials
The energy sources that I am most excited about all have lower carbon emissions, compared to conventional energy sources. These include Biomass Energy, Wind Energy, Solar Energy, Geothermal Energy, and Hydroelectric Energy sources.
over 7.1 millon people
Zagros
corn and wheat
Is wind and sun a pair of sources of energy
what is origin of non-renewable energy sources, including how energy became trapped in these souces
There are many of energy sources in earth like solar energy, geothermal energy, hydroelectricity, tide energy, nuclear energy.
what are the three sources of chemical energy
How about: 'Energy sources are essential for an industrial economy'