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B. Fill in the blanks.1. .................can be used again and again after processing.2.On the basis of occurrence, resources are classified into two categories-....................and.................3. With advancement of technology, availability of....................and .................. labour are necessary for resource utilisation.4. Developed countries are economically self-sufficient and............. advance5. The ......................resources need a detailed survey for estimating their quantity and quality |
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