1) What is the meaning of weather and climate ? 2) Mention three energy alternative source ? and explain it ! 3) Mention four factors that affect changing weather 4) Mention four ways to save energy ! 5) What is the difference between renewable energy and non - renewable energy ?

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟