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المسطحات المائية
Referring to any significant accumulation of water usually on planet earth but also on other planetary bodies.
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المسطحات المائية > أنهار كندا 
مياه عذبة
المسطحات المائية; أنهار كندا
Naturally occurring water on the Earth's surface in bogs, ponds, lakes, rivers and streams, and underground as groundwater in aquifers and underground streams. Fresh water is ...
دلتا
المسطحات المائية; أنهار كندا
A landform that is formed at the mouth of a river where that river flows into an ocean, sea, estuary, lake, reservoir, flat arid area, or another river. Deltas are formed from the ...
تحت أرضي
المسطحات المائية; أنهار كندا
This is a river that runs wholly or partly beneath the ground surface one where the riverbed does not represent the surface of the Earth (rivers flowing in canyons are not classed ...
نهري
المسطحات المائية; أنهار كندا
ضفة النهر أو تيار-المصرف هو التضاريس إلى جانب سرير النهر، وخور، أو تيار.
فيضان
المسطحات المائية; أنهار كندا
An overflow of an expanse of water that submerges land. The EU Floods directive defines a flood as a temporary covering by water of land not normally covered by water. In the ...
مياه
المسطحات المائية; أنهار كندا
It is a chemical substance with the chemical formula H2O. Its molecule contains one oxygen and two hydrogen atoms connected by covalent bonds. Water is a liquid at ambient ...
دورة المياه
المسطحات المائية; أنهار كندا
Also known as the hydrologic cycle or H2O cycle, describes the continuous movement of water on, above and below the surface of the Earth. Water can change states among liquid, ...
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