PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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8. Hardness of water: think and select the answer

1.

Take a look at the image above and choose the correct answer.

B is rain water and A is river water
B is distilled water and A is rain water
B is sea water and A is distilled water
B is distilled water and A is sea water

2.

When we use this water, the soap becomes ineffective and the clothing become even more damaged.

pond water
distilled water
rain water
All of these
None of these

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