سيروم فيتامين سي
منتديات فور يو القسم الرئيسي food and agriculture news Water – the most basic resource but also the most essential
noura Senior Member

Basic factsThe world contains an estimated 1 400 million cubic km of water. Only 0.003% of this vast amount, about 45 000 cubic km, are what is called “fresh water resources” - water that theoretically can be used for drinking, hygiene, agriculture and industry. But not all of this water is accessible. For example, seasonal flooding makes water extremely difficult [...]

أكثر...


Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd. منتديات فوريو
by : uc-4u
جميع الحقوق محفوظة منتديات فور يو