1. What are the materials picks up by the rain?
2. Why does a clean air become an acid rain?
3. How can we minimize the acid rain?
Reflection:
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1. What are the materials picks up by the rain?
2. Why does a clean air become an acid rain?
3. How can we minimize the acid rain?
Reflection:
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Answer:
1.steamed liquid, sometimes it absorb or heated in oceans and muddy puddles
2.because it filtered by the dirty gases such as smokes in factories and in car smokes
3.reduce the smoking and don't burn plastics