Write true or false & correct the false statement:
1. Underground water can be used by digging wells and tube wells.
2. Heating causes a salute to dissolve faster in its solution.
3. Acid rain pollutes water bodies & harms aquatic life.
4. Photosynthesis is the only natural process that release oxygen into the air.
5. The percentage by volume of oxygen in air is variable from place to place.
don't write faltu answer
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true
true
true
false
false
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I have his exam today god bless you dear sorry
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