Range:
Subjects: Egypt; Statistics; Climate; Geography
Subjects: Egypt; Statistics
Subjects: Egypt; Nile River; Statistics
Subjects: Egypt; Statistics; Weather
Subjects: Mechanical properties; Oxides; Solar batteries; Solar energy; Zinc
Subjects: Egypt; Microbiology; Qalyubiyah; Soils; Soil pollution
Subjects: Arsenic; Egypt; Environmental aspects; Toxicology
Subjects: Baqubah; Iraq; Drinking water; Pollution; Water
Subjects: Nuclear energy; Nuclear physics; Nuclear fusion
Subjects: Diesel motors; Internal combustion engines; Performance
Subjects: Machines
Subjects: Aerial photography; Saudi Arabia; Remote sensing
Subjects: Electric power systems; Electricity
Subjects: Oman; Statistics; Economic aspects; Water
Subjects: Performance
Subjects: Buildings; Renewable energy sources; Air conditioning; Environmental engineering; Solar energy
Subjects: Fluid dynamics
Subjects: Anaerobic treatment; Microbiology; Waste water; Water treatment; Sanitation
Subjects: Heating; Climate; Greenhouses
Subjects: Statistics
Subjects: Arab world; Statistics
Subjects: Arab world; Statistics; Consumption; Electric power
Subjects: Arab world; Statistics; Natural gas
Subjects: Arab world; Statistics; Petroleum
Subjects: Arab world; Statistics; Petroleum reserves
Subjects: Air quality; Statistics; Yemen
Subjects: Arab world; Chemicals; Statistics; Air; Pollution