Compare between different types of environmental stresses Explore how can stress affect ...
Compare between different types of environmental stresses Explore how can stress affect on plant Explain the responsibility of plant to alleviate stress
The story of the oil discovery in Saudi Arabia from the geologists ...
The story of the oil discovery in Saudi Arabia from the geologists search till Kingdom entered the stage of world oil and exported its first oil tanker.
The story of the oil discovery in Saudi Arabia from the geologists ...
The story of the oil discovery in Saudi Arabia from the geologists search till Kingdom entered the stage of world oil and exported its first oil tanker.
This study is trying to assess the types and frequencies of occurrence ...
This study is trying to assess the types and frequencies of occurrence of coral diseases. Are these diseases due to the impacts of global warming or tourism on coral reefs along the Red Sea coast off Hurghada?
The research investigated sexual behavior of University students in south west Nigeria. ...
The research investigated sexual behavior of University students in south west Nigeria. Four hundred and fifty (450) students selected from south west Nigeria Federal Universities were used for the study.
لا شك أن إمكانات الطاقة الشمسية في المملكة العربية السعودية هائلة| وذلك ...
لا شك أن إمكانات الطاقة الشمسية في المملكة العربية السعودية هائلة| وذلك بفضل موقعها في نطاق «الحزام الشمسي العالمي»| وهي منطقة جغرافية تقع بين 35 درجة شمالاً و 35 درجة جنوباً| وتتميز بوجه عام بالإشعاع الشمسي المرتفع. وتُعد إشعاعاتها الشمسية من أعلى المعدلات في العالم| حيث يتراوح المتوسط السنوي للإشعاع الأفقي العالمي اليومي (GHI) من 5700 واط/م2 إلى 6700 واط/م2 والواقع أن أكثر من 59 في المئة من مساحة منطقة مجلس التعاون الخليجي “تتمتع بإمكانات هائلة لنشر الطاقة الشمسية الضوئية (PV)| فقد ينتج عن تطوير 1٪ فقط من هذه المنطقة 470 جيجاواط من الطاقة الشمسية الكهروضوئية”| وذلك وفقاً للوكالة الدولية للطاقة المتجددة (IRENA).
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