Four items P, Q, R and S were buried under the ground for a month. The given table shows the mass of the items before and after they were buried. Which of the following could be orange peel (X) and metal key (Y)?
A
B
C
D
a
Four items P, Q, R and S were buried under the ground for a month. The given table shows the mass of the items before and after they were buried. Which of the following could be orange peel (X) and metal key (Y)?
A
B
C
D