اختبار الكتروني انجليزي للصف الحادي عشر الوحدة الاولى - READING COMPREHENSION

1
The Best title for the passage is:
2
What does the underlined word “it” in paragraph 3 means:
3
The underlined word “man-made” in paragraph 3 means:
4
We can understand from paragraph 2:
5
According to paragraph 3 the first main cause of pollution by humans is:

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