1400 years ago people didn't know that water affects the color of leaves. Today we know that too much water or too little water can turn leaves yellow.
Leaf Yellowing - Environmental StressLeaf yellowing is often one of the first symptoms of plant stress. If the stress causing condition is not alleviated, yellow leaves may turn brown. A prolonged period of environmental stress causes overall stunting and poor growth. Noticing the pattern and progression of symptoms will help to diagnose the cause of the problem...DroughtPlants wilt and leaves curl when roots are unable to supply sufficient moisture to the stems and leaves. Wilting for short periods of time does not harm plants. Sometimes a plant wilts on a hot day because moisture is evaporating from the leaves faster than the roots can supply it. If there is ample soil moisture, the plant will absorb water in the evening to firm up the stems and leaves. Over a prolonged period, however, drought will cause serious damage, such as yellowing, leaf scorch, browning, or leaf drop and stunted growth. Extended periods of drought also inhibit flower formation. Severe heat and water stress when a plant is in bloom may cause scorching or browning of flower buds and blossoms. Plants vary in their ability to tolerate drought and some may die suddenly after extended periods of drought.Excess WaterProblems with excess water can result from poorly drained soil or overwatering. Excess water reduces oxygen in the soil, which damages fine roots and renders the plant unable to take up water. Plants exposed to excess moisture show the same symptoms as plants under drought stress. The primary symptom of excess moisture is wilting or yellowing of lower and inner leaves. If excess water continues, plants may show other drought symptoms, such as scorch, leaf drop, and/ or plant death.
Water is related to the yellowing of leaves. This was known recently, however this was portrayed in the Quran 1400 years before it was discovered.
٢١ أَلَمْ تَرَ أَنَّ اللَّهَ أَنْزَلَ مِنَ السَّمَاءِ مَاءً فَسَلَكَهُ يَنَابِيعَ فِي الْأَرْضِ ثُمَّ يُخْرِجُ بِهِ زَرْعًا مُخْتَلِفًا أَلْوَانُهُ ثُمَّ يَهِيجُ فَتَرَاهُ مُصْفَرًّا ثُمَّ يَجْعَلُهُ حُطَامًا ۚ إِنَّ فِي ذَٰلِكَ لَذِكْرَىٰ لِأُولِي الْأَلْبَابِ
Here water is related to the yellowing of leaves. Today we know that too much water or too little water can turn leaves yellow.
"Wind-burn" is when wind accelerates the evaporation of water from the leaves, mimicking drought.
Wind BurnWind-burned leaves are often curved under and form "claws." They can look like they're droopy from overwatering, underwatering, or possible a nitrogen toxicity, but you know you've got wind-burn when the leaves in front of the fan are clawing, and leaves further away from the fan look fine.
GrowWeedEasy, Wind Burn, 2019
Wind can increase the evaporation of water in the leaves mimicking underwatering and causing the leaves to turn yellow. This was known recently, however this was portrayed in the Quran 1400 years before it was discovered.
٥١ وَلَئِنْ أَرْسَلْنَا رِيحًا فَرَأَوْهُ مُصْفَرًّا لَظَلُّوا مِنْ بَعْدِهِ يَكْفُرُونَ
Here wind is causing leaves to turn yellow. Today we know why, wind accelerates the evaporation of water causing the leaves to turn yellow.
How could an illiterate man who lived 1400 years ago have known that water and wind are related to the yellowing of leaves?
The Quran (Koran, the book of Islam) contains scientific knowledge that could not have been known 1400 years ago. It ranges from basic arithmetics to the most advanced topics in astrophysics. You are invited to go through those miracles and judge for yourself.
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