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Q1. Which is not a natural ecosystem?
Q2. Which is not a component of human environment?
Q3. Which is human made environment?
Q4. Which is a threat to environment?
Q5. A blanket of air which surrounds the earth is –
Q6. The domain of water is called –
Q7. The rigid outermost shell of a terrestrial type planet is called –
Q8. A world of non-living elements does not consist –
Q9. Biotic environment consists of –
Q10. Environmet includes –