Study the given flow chart carefully.
Cotton and metal are represented by the letters and respectively.
AP, Q
BQ, R
CQ, S
DR, S
Ans 2: (Master Answer)
Class : Class 1
C
According to the given flow chart P is not a natural substance. So, it can be a man-made substance. Q, R and S are natural substances. Q is obtained from plants and R is obtained from animals whereas S could be any other natural substance such as metal, air, water, etc.