differenciate between hard and soft material
THE DIFFERENCE BETWEEN HARD& SOFT MATERIALS ARE SOFT MATERIALS CAN BE PRESSED AND SCRATCHED BUT HARD MATERIALS CANNOT BE SCRATCHED AND PRESSED
differenciate between hard and soft material
THE DIFFERENCE BETWEEN HARD& SOFT MATERIALS ARE SOFT MATERIALS CAN BE PRESSED AND SCRATCHED BUT HARD MATERIALS CANNOT BE SCRATCHED AND PRESSED