1.

Complete the crossword puzzle with the help of clues given below:​Across​1. Pollutant which was used in refrigerators and air conditioners. (18) ​Down​2. This layer protects us from harmful ultraviolet rays. (5)​Across​3. Produced on incomplete combustion of fuels. (14)​Down​4. It is essential for combustion. (6)​Down​5. Disease which is caused by drinking contaminated water. (7)​Across​6. This chemical protects our crops and is washed into water bodies from the field. (9)​Down​7. River which is famous in India and sustains most of the northern, central, and eastern Indian population. (5)​

Answer» Complete the crossword puzzle with the help of clues given below:​



Across​

1. Pollutant which was used in refrigerators and air conditioners. (18) ​

Down​

2. This layer protects us from harmful ultraviolet rays. (5)​



Across​

3. Produced on incomplete combustion of fuels. (14)​



Down​

4. It is essential for combustion. (6)​



Down​

5. Disease which is caused by drinking contaminated water. (7)​



Across​

6. This chemical protects our crops and is washed into water bodies from the field. (9)​



Down​

7. River which is famous in India and sustains most of the northern, central, and eastern Indian population. (5)​





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