Question
Physics Question on Dimensional Analysis
The percentage weight of Zn in white vitriol [ZnSO4. 7H2O] is approximately equal to (at. mass of Zn= 65, S=32, 0=16 and H= 1)
A
secondary phloem
B
cork
C
cambium
D
all of these.
Answer
all of these.
Explanation
Solution
The correct option is(D): all of these.
In the vascular plant, the periderm is the outer protective tissue. It is produced by the cork cambium and during the secondary growth, it can be replaced by the epidermis.