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A) High evaporation and low precipitation B) Volcanic activity on the sea floor C) Excessive melting of polar ice caps D) High inflow from major rivers
A) 45 ‰ B) 35 ‰ C) 40 ‰ D) 30 ‰
A) 25 ‰ B) 30 ‰ C) 40 ‰ D) 35 ‰
A) Southern part near the Gulf of Aden B) Central part near Jeddah C) Along the coast of Eritrea D) Northern part around the Gulf of Suez
A) Gulf of Aden B) Jeddah area C) Al-Kharrar area D) Gulf of Suez
A) 0.2 m B) 0.9 m C) 0.5 m D) 1.0 m
A) Thermal vents B) Earth's rotation C) Wind D) Tectonic plate movement
A) Winter B) Spring C) Summer D) Autumn
A) 20–30 km/h B) 1–5 km/h C) 7–12 km/h D) 15–20 km/h
A) 0.5 m/s B) 0.1 m/s C) 2 m/s D) 1 m/s
A) It inundates sabkhas as a thin sheet B) It creates deep whirlpools C) It floods through a massive network of channels D) It causes significant erosion of deep-sea trenches
A) Saudi Arabia B) Libya C) Lebanon D) Turkey
A) 5 km B) 10 km C) 3 km D) 1 km
A) Increasing the water temperature B) Resuspending bottom sediments C) Generating hydroelectric power D) Desalinating the water
A) It has no effect on sediment B) As suspended load or bedload C) By chemical precipitation D) Through deep-sea currents only
A) Indian Ocean B) Pacific Ocean C) Atlantic Ocean D) Arctic Ocean
A) Bab-el-Mandeb Strait B) Suez Canal C) Strait of Gibraltar D) Strait of Hormuz
A) East African Rift B) Mid-Atlantic Ridge C) San Andreas Fault D) Red Sea Rift
A) 250,000 km2 B) 600,000 km2 C) 438,000 km2 D) 120,000 km2
A) 10% B) 25% C) 40% D) 50%
A) Inland sea B) Coral reef system C) Tropical sea D) Saltwater lake
A) Sinus Arabicus B) Pontus Herculis C) Erythrà Thálassa D) Mare Rubrum
A) Trichodesmium erythraeum B) Red algae C) Red jellyfish D) Red coral
A) Alexander the Great B) Pliny the Elder C) Aristotle D) Herodotus
A) Iberian Peninsula B) Balkan Peninsula C) Sinai Peninsula D) Arabian Peninsula
A) Badda Cas B) Phiom Enhah C) Qasa Bad D) Mare Rubrum
A) Persians B) Romans C) Greeks D) Egyptians
A) Alexander the Great B) Hatshepsut C) Augustus D) Darius the Great
A) Baḥar al-Qulzum B) Erythraean Sea C) Yam Suph D) Suez Gulf
A) Baḥar al-Qulzum B) The Indian Ocean C) Yam Suph D) The Nile
A) Augustus B) Alexander the Great C) Hatshepsut D) Darius the Great
A) A canal B) A massive fleet C) A harbor D) A bridge
A) Temples B) Obelisks C) Stelae D) Pyramids
A) Augustus B) Hatshepsut C) Alexander the Great D) Darius the Great
A) Hippalus B) Darius the Great C) Saadia Gaon D) Agatharchides
A) Agatharchides B) Alexander the Great C) Hippalus D) Darius the Great
A) Darius the Great B) Hatshepsut C) Alexander the Great D) Augustus
A) Egyptian Empire B) Aksumite Empire C) Achaemenid Empire D) Greek Empire
A) Slave trade B) Pirate warfare C) Religious pilgrimages D) Pearl diving
A) Ottoman naval bases B) The holy cities of Mecca and Medina C) Portuguese trade ships D) Lightly armed Muslim pilgrim convoys
A) Napoleon I B) Afonso de Albuquerque C) Raynald of Châtillon D) Heitor da Silveira
A) Mecca B) Aden C) Suez D) Cairo
A) 1513 B) 1798 C) 1967 D) November 1869
A) The Second World War B) The Red Sea slave trade C) The Six-Day War D) Piracy in the Bab al-Mandab
A) Oil pipelines B) Coral reef research vessels C) Western ships D) Ancient trade routes
A) 500 mm B) 60 mm C) 200 mm D) 2,050 mm
A) Northeasterly monsoon B) BA3 virus C) Thalassomonas loyana D) Favia favus
A) A virus called BA3 B) Low temperatures C) High salinity D) Strong currents
A) 30 °C B) 26 °C C) 34 °C D) 22 °C |