Subject :NSO Class : Class 4
Priya carried out an experiment to test the hardness of objects 1, 2 and 3. The results of the experiment are shown in the given table.
| Scratch test | Result | |
|---|---|---|
| (i) |  |
 |
| (ii) |  |
 |
| (iii) |  |
 |
| (iv) |  |
 |
Which of the following shows the correct order of hardness of objects 1, 2 and 3, starting from the hardest?
A1, 2, 3
B1, 3, 2
C2, 3, 1
D3, 1, 2
B