1.

Fill in the blanks1.______ is a very valuable source of fuel. 2. The layer air where clouds are formed is ______3. The two forms of well tube well and open well. 4. ______does not get work in the farm throughout the year. 5. Carbohydrates are made up of _____ _______and______ 6. SI unit if density is________​

Answer»

Answer:

1 PETROL ,2troposphere, 3



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