books ما هي النيترة وأهميتها
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# The origin of the city and its importance
# Vitamin sources and their importance
# The virtue and importance of Witr prayer
# Zakat, its definition and importance
# Tax definition and importance
# Education and its importance
# The call to God and its importance
# Types of fungi and their importance
# The benefits and importance of mushrooms
# Bones and their importance to the body
# The concept of population geography and its importance
# The concept of management, its importance and functions
# The media and its importance
# A topic about school and its importance
# Sports and its importance
# The eye and its importance
# The benefits and importance of the tree
# The geography of the city and its importance
# Pentoses and their importance in biology
# The status and importance of the machine
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ما هي النيترة وأهميتها (Info)
هي عملية أكسدة النشادر في الطبيعة وتحوله إلى حمض النيتريك مرورا بمرحلة وسيطة بتكون فيها حمض النيتروز بفعل نوع من أنواع البكتريا وهي عملية تلعب دورا هاما في زيادة خصوبة التربة
