1. what is the meaning of iron in english?

نحاس

حديد

زنك

فوسفا ت

2. what is the meaning of depression in english?

تفاؤل

احباط

تشاؤم

اتفاق

3. what is the meaning of fatigue in english?

مرونة

حيوية

اعياء

طاقة

4. what is the meaning of astronomer in english?

عالم فلك

عالم اثار

منجم

عالم ابراج

5. what is the meaning of pollution in english?

نقاء

تلوث

اهتمام

نظافة

6. what is the meaning of ecosystem in english?

نظام غذائي

نظام بيئي

نظام اقتصادي

نظام عالمي